2003 Chevrolet Blazer Engine Timing Parts

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Keep Your 2003 Chevrolet Blazer in Top Shape with Quality Engine Timing Parts

Whether you’re repairing or upgrading your Engine Timing Part, using high-quality parts is key to keeping your 2003 Chevrolet Blazer looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Timing Cam Gears, Timing Chain Tensioners, and Timing Covers. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2003 Chevrolet Blazer Engine Timing Part at Advance Auto Parts is around $68.16, with a range that starts at $15.99 and goes up to $161.99. With 12 options in stock from 5 trusted brands, finding the right fit is easy. Popular picks like Engine Timing Set, Engine Timing Chain Kit, and Engine Timing Chain start at just $26.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Timing Part, don’t forget to check out other key components like Engine Gaskets and Seals and Engine Switches, Sensors and Relays. At Advance Auto Parts, we’re here to help you keep your 2003 Chevrolet Blazer in peak condition, inside and out.

Essential 2003 Chevrolet Blazer Engine Timing Parts

Cloyes Gear – Engine Timing Camshaft Sprocket (Part No.S732T)

Engine Timing Camshaft Sprocket

from

$19.99
Sprocket Made From High Alloy Material. Features Precision Tooth Form To Assure Proper Chain Engagement, And Is Balanced For Proper Timing.

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Refer to our online catalog for detailed application-specific information
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Cloyes Gear – Engine Timing Camshaft Sprocket (Part No.S776T)

Engine Timing Camshaft Sprocket

from

$35.99
Sprocket Made From High Alloy Material. Features Precision Tooth Form To Assure Proper Chain Engagement, And Is Balanced For Proper Timing.

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Refer to our online catalog for detailed application-specific information
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Cloyes Gear – Engine Timing Camshaft Sprocket (Part No.S394)

Engine Timing Camshaft Sprocket

from

$19.99
Sprocket Made From High Alloy Material. Features Precision Tooth Form To Assure Proper Chain Engagement, And Is Balanced For Proper Timing.

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Refer to our online catalog for detailed application-specific information
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Dayco – TIMING CHAIN KIT (Part No.KTC1345)

TIMING CHAIN KIT

from

$39.99
With the backing of an industry-leading two year or 60,000 mile parts and labor warranty, each Dayco timing chain kit includes top-grade timing chains, precision machined crank sprockets and cam sprockets, tensioners, high-grade plastic guides, seals and VVT solenoids and cam phasers if the application calls for it.

Product Features:
  • High quality chains prevent stretch for the life of the kit, addressing the no. 1 replacement issue
  • Precision machined sprockets for exact timing
  • High-grade plastic guides use same material as OE for excellent wear resistance
  • Contains: Camshaft Sprocket, Crankshaft Sprocket, Timing Chain
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Cloyes Gear – Primary Timing Chain Kit: Exact Fit, 154 Links, Timing/Balance Shaft Components, With Sprockets (Part No.9-0918S)

Primary Timing Chain Kit: Exact Fit, 154 Links, Timing/Balance Shaft Components, With Sprockets

from

$252.99
Since 1921, Cloyes has been the trusted leader in automotive timing systems delivering premium-quality solutions. Cloyes engine timing chain kits are engineered for precision, durability, and optimal engine performance. Kits include all chains, sprockets, tensioners, chain guides, and chain tensioner guides – respective to application and kit selection. To ensure total timing system integrity, Cloyes recommends replacing all engine timing components. Trusted by professionals for over a century & backed by an industry-leading limited Warranty and technical support.

Product Features:
  • Cloyes chains are pre-stressed and heat-treated. Engineered and manufactured with precision pitch control to ensure optimal chain-to-sprocket fit reducing noise, minimizing fatigue, maintaining accurate timing and delivering long-term durability.
  • Sprockets are CAD designed, manufactured using premium material and heat-treated. Featuring precision-tooled tooth form, bore, off-set and timing index for superior fit, reliability, and long-term performance in engine timing repairs.
  • Timing chain tensioners can use spring tension or hydraulic pressure to properly tension the chain. All are CAD designed and manufactured using premium materials allowing for smooth installation and reliable performance.
  • Chain guides serve as a guide (or track) for the timing chain and either apply tension to the system or simply give it a path, connecting crankshaft and camshaft ensuring proper alignment and timing. CAD designed and manufactured using premium materials,
  • All timing components designed in the USA and manufactured using premium materials for OE-level fit and function, allowing for smooth installation and reliable performance.
  • Each part is extensively tested for function, fitment, and durability to ensure consistent quality and optimal performance, reducing the risk of comebacks.
  • Backed by Limited Lifetime Warranty and over 100 years of engineering leadership with unmatched technical support and repair confidence in every kit.
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Dayco – TIMING CHAIN KIT (Part No.KTC1405)

TIMING CHAIN KIT

from

$39.99
With the backing of an industry-leading two year or 60,000 mile parts and labor warranty, each Dayco timing chain kit includes top-grade timing chains, precision machined crank sprockets and cam sprockets, tensioners, high-grade plastic guides, seals and VVT solenoids and cam phasers if the application calls for it.

Product Features:
  • High quality chains prevent stretch for the life of the kit, addressing the no. 1 replacement issue
  • Precision machined sprockets for exact timing
  • High-grade plastic guides use same material as OE for excellent wear resistance
  • Contains: Camshaft Sprocket, Crankshaft Sprocket, Timing Chain
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Schaeffler – Repair Sleeve (Part No.SR3506)

Repair Sleeve

from

$53.99
The FAG repair sleeve is a precision element that provides additional sealing for damaged shafts. Made of heat-treated stainless steel, the FAG repair sleeve signifcantly increases the life of the shaft and prevents premature wear. Since no shaft removal or machining is required during the repair, the repair sleeve is a cost effective repair solution to protect damaged surfaces.

Product Features:
  • High-precision and High-quality components used in all KITs
  • Coverage of classic and new high-tech solutions for the best system coverage
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INA US – ENG TMNG CHN TNS KIT (Part No.ZT-9-5452)

ENG TMNG CHN TNS KIT

from

$99.99
ENG TMNG CHN TNS KIT

Cloyes Gear – CHAIN TENSIONER (Part No.9-6038)

CHAIN TENSIONER

from

$29.99
Since 1921, Cloyes has been the trusted leader in automotive timing systems, delivering premium-quality solutions. A timing chain tensioner maintains appropriate tension in the timing chain. Depending on design and application, Cloyes engine timing chain tensioners can use spring tension or hydraulic pressure to properly tension the chain for optimal performance. To ensure total timing system integrity, Cloyes recommends replacing the chain along with the tensioners, guides, and sprockets during service. Trusted by professionals for over a century & backed by an industry-leading warranty and technical support.

Product Features:
  • CAD designed and manufactured using premium materials and heat-treated for OE-level fit and function, allowing for smooth installation and reliable performance
  • Each part is extensively tested for function, fitment, and durability to ensure consistent quality and optimal performance, reducing the risk of comebacks
  • Available in application-specific kit or as a stand-alone product, offering installation flexibility and convenience
  • Backed by Limited Warranty and over 100 years in engineering leadership with unmatched technical support and repair confidence in every component
  • Utilizes the latest in design and material technology, ensuring a quiet and maintenance-free experience
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Cloyes Gear – CHAIN TENSIONER (Part No.9-6039)

CHAIN TENSIONER

from

$28.99
Since 1921, Cloyes has been the trusted leader in automotive timing systems, delivering premium-quality solutions. A timing chain tensioner maintains appropriate tension in the timing chain. Depending on design and application, Cloyes engine timing chain tensioners can use spring tension or hydraulic pressure to properly tension the chain for optimal performance. To ensure total timing system integrity, Cloyes recommends replacing the chain along with the tensioners, guides, and sprockets during service. Trusted by professionals for over a century & backed by an industry-leading warranty and technical support.

Product Features:
  • CAD designed and manufactured using premium materials and heat-treated for OE-level fit and function, allowing for smooth installation and reliable performance
  • Each part is extensively tested for function, fitment, and durability to ensure consistent quality and optimal performance, reducing the risk of comebacks
  • Available in application-specific kit or as a stand-alone product, offering installation flexibility and convenience
  • Backed by Limited Warranty and over 100 years in engineering leadership with unmatched technical support and repair confidence in every component
  • Utilizes the latest in design and material technology, ensuring a quiet and maintenance-free experience
See More

Cloyes Gear – Engine Timing Gear Set (Part No.2555S)

Engine Timing Gear Set

from

$81.99
Both Gears Made From High Alloy Material. Feature “Helical” Tooth Form For Quiet Operation, And Precision Machined Bore For True Fit.”

Product Features:
  • Utilizes the latest in design and technology to offer complete chain sets
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Meet or exceed OEM performance requirements, ensuring a quiet and maintenance-free experience
  • Refer to our online catalog for detailed application-specific information
  • Set Includes: Camshaft Gear, Crankshaft Gear.
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Cloyes Gear – Engine Timing Crankshaft Sprocket (Part No.S395)

Engine Timing Crankshaft Sprocket

from

$13.99
Sprocket Made From High Alloy Material. Sprocket Teeth Are Heat Treated. Precision Tooth Form To Assure Proper Chain Engagement, And Precise Keyway To Tooth Timing.

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Refer to our online catalog for detailed application-specific information
See More

Cloyes Gear – Engine Timing Crankshaft Sprocket (Part No.S391)

Engine Timing Crankshaft Sprocket

from

$8.49
Sprocket Made From High Alloy Material. Sprocket Teeth Are Heat Treated. Precision Tooth Form To Assure Proper Chain Engagement, And Precise Keyway To Tooth Timing.

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Refer to our online catalog for detailed application-specific information
See More

Cloyes Gear – Engine Timing Crankshaft Sprocket (Part No.S807)

Engine Timing Crankshaft Sprocket

from

$42.99
Sprocket Made From High Alloy Material. Sprocket Teeth Are Heat Treated. Precision Tooth Form To Assure Proper Chain Engagement, And Precise Keyway To Tooth Timing.

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Refer to our online catalog for detailed application-specific information
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Cloyes Performance – Engine Timing Cover (Part No.9-221B)

Engine Timing Cover

from

$47.99
Machined Aluminum Center Plate. Threaded for Rollerized Cam Button. Grooved for O-Ring Seal. Meets or exceeds OEM performance requirements. Cloyes utilizes the latest in design and material technology, ensuring quiet and maintenance-free experience.

Product Features:
  • Machined Aluminum Center Plate
  • Threaded for Rollerized Cam Button
  • Grooved for O-Ring Seal
  • Meets or exceeds OEM performance requirements
  • Cloyes utilizes the latest in design and material technology, ensuring quiet and maintenance-free experience.
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Cloyes Performance – Quick Button Two-piece Timing Cover (Part No.9-221)

Quick Button Two-piece Timing Cover

from

$229.99
QUICK BUTTON Aluminum Two-Piece Timing Cover for Most Timing Chain Systems (Excluding QUICK ADJUST). Includes Fully Rollerized Endplay Adjustable Cam Button. A Perfect Compliment to Your HEX-A-JUST Timing Set for Easy Access Camshaft Timing Adjustments.

Product Features:
  • QUICK BUTTON Aluminum Two-Piece Timing Cover for Most Timing Chain Systems (Excluding QUICK ADJUST)
  • Includes Fully Rollerized Endplay Adjustable Cam Button
  • A Perfect Complement to Your HEX-A-JUST Timing Set for Easy Access Camshaft Timing Adjustments.
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Edelbrock – Timing Cover SBC Stamped Steel W/Welded Star & Logo Chrome (Part No.4860)

Timing Cover SBC Stamped Steel W/Welded Star & Logo Chrome

from

$34.99
Edelbrock part #4860 S/B Chevy Chrome Timing Cover (with Welded Reinforcement Plate) This stamped steel timing covers for small-block Chevrolet has a reinforcement plate welded to the inside of the cover for added strength. This timing cover is ideal for

Product Features:
  • Stamped Steel Material
  • Comes W/ Front Crankshaft Seal Installed
  • W/ Welded Reinforcement Plate
  • Chrome Finish
  • Ideal For Preventing Camshaft Walk When Used W/ Thrust Button
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Cloyes Performance – Engine Timing Cover (Part No.9-229)

Engine Timing Cover

from

$222.99
QUICK BUTTON Aluminum Two-Piece Timing Cover for Most Timing Chain Systems (Excluding QUICK ADJUST). Includes Fully Rollerized Endplay Adjustable Cam Button. A Perfect Compliment to Your HEX-A-JUST Timing Set for Easy Access Camshaft Timing Adjustments.

Product Features:
  • QUICK BUTTON Aluminum Two-Piece Timing Cover for Most Timing Chain Systems (Excluding QUICK ADJUST)
  • Includes Fully Rollerized Endplay Adjustable Cam Button
  • A Perfect Complement to Your HEX-A-JUST Timing Set for Easy Access Camshaft Timing Adjustments.
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Cloyes Gear – Engine Timing Chain (Part No.9-4149)

Engine Timing Chain

from

$23.99
Pre-Stressed And Heat-Treated For Increased Durability. Precision Cut Plates And Rollers With Smooth Finish. Precision Pitch Control For Proper Chain To Sprocket Tooth Fit.

Product Features:
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
  • CAD designed and manufactured using premium materials
  • Refer to our online catalog for detailed application-specific information
  • Pre-Stressed And Heat-Treated For Increased Durability. Precision Cut Plates And Rollers With Smooth Finish. Precision Pitch Control For Proper Chain To Sprocket Tooth Fit.
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Cloyes Performance – High Performance Timing Chain (Part No.9-145)

High Performance Timing Chain

from

$19.99
Street Performance 3/8″ Pitch Double Roller Replacement True Roller Chain. Seamless 0.250″ Roller Diameter. Heat Treated and Processed Links to Maximize Breaking Strength while Remaining Ductile for Toughness. Prestressed to Increase Fatigue Life. USA Made.

Product Features:
  • A timing chain synchronizes the rotation of the crankshaft and camshaft(s), ensuring proper timing of the engines valve events for each cylinder
  • Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
  • From stock replacement to high performance, Cloyes has the most complete timing chain catalog
  • Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Cloyes recommends the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced as these components play a vital role in system stability and accurate timing
  • Refer to our online catalog for detailed application-specific information
  • Keep your engines valvetrain in perfect time with Cloyes, the world leader in timing drive systems
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Cloyes Performance – High Performance Timing Chain (Part No.9-131Z)

High Performance Timing Chain

from

$133.99
Premium High Performance 3/8″ Pitch Double Roller Replacement TRUE Roller “Z” Chain. 0.250″ Roller Diameter. Approximately 33% Overall Increased Strength Over the Standard High Performance Chain. Featuring a Press Fit Center Link design that Increases Load Distribution. Heat Treated and Processed Links to Maximize Ultimate Breaking Strength while Remaining Ductile for Toughness. Pre-stressed to Increase Fatigue Life.

Product Features:
  • A timing chain synchronizes the rotation of the crankshaft and camshaft(s), ensuring proper timing of the engines valve events for each cylinder
  • Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
  • From stock replacement to high performance, Cloyes has the most complete timing chain catalog
  • Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Cloyes recommends the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced as these components play a vital role in system stability and accurate timing
  • Refer to our online catalog for detailed application-specific information
  • Keep your engines valvetrain in perfect time with Cloyes, the world leader in timing drive systems
See More

Cloyes Performance – High Performance Timing Chain (Part No.9-192)

High Performance Timing Chain

from

$64.99
High Performance 1/2″ Pitch Single Roller Replacement True Roller Chain. Heat Treated and Processed Links to Maximize Breaking Strength while Remaining Ductile for Toughness. Prestressed to Increase Fatigue Life.

Product Features:
  • A timing chain synchronizes the rotation of the crankshaft and camshaft(s), ensuring proper timing of the engines valve events for each cylinder
  • Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
  • From stock replacement to high performance, Cloyes has the most complete timing chain catalog
  • Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Cloyes recommends the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced as these components play a vital role in system stability and accurate timing
  • Refer to our online catalog for detailed application-specific information
  • Keep your engines valvetrain in perfect time with Cloyes, the world leader in timing drive systems
See More

INA US – ENGINE TIMING CHAIN (Part No.ZC-C-506)

ENGINE TIMING CHAIN

from

$18.99
ENGINE TIMING CHAIN

Cloyes Performance – High Performance Timing Set (Part No.9-3145)

High Performance Timing Set

from

$139.99
Billet Crank Sprocket Has Three Keyways for +/- 4 Degrees Adjustability. Both Sprockets Heat Treated for Durability. True Roller 0.250″ Roller Diameter Chain for Reduced Friction. 3-Piece Sets Hand-Matched to Qualify the Correct Center Distance and Minimize Runout

Product Features:
  • The complete kits, which meet or exceed OEM performance requirements, ensure a quiet and maintenance-free experience
  • Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Cloyes Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides
  • Refer to our online catalog for detailed application-specific information
  • Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems.
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Cloyes Performance – Engine Timing Set (Part No.9-1145)

Engine Timing Set

from

$90.99
Billet Crankshaft Sprocket Has Three Keyways for +/- 4 Degrees Adjustability. Crankshaft Sprocket Heat Treated for Durability. Seamless True Roller 0.250″ Roller Diameter Chain for Reduced Friction. 100% USA Made

Product Features:
  • The complete kits, which meet or exceed OEM performance requirements, ensure a quiet and maintenance-free experience
  • Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Cloyes Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides
  • Refer to our online catalog for detailed application-specific information
  • Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems.
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Cloyes Performance – High Performance Timing Set (Part No.9-3547TX9)

High Performance Timing Set

from

$139.99
Billet Camshaft Sprocket for Superior Street Performance. Billet Crankshaft Sprocket Has Nine Keyways for +/- 8 Degrees Adjustability. Crankshaft Sprocket Heat Treated for Durability. Seamless True Roller 0.250″ Roller Diameter Chain for Reduced Friction. Includes Captured Needle Camshaft Sprocket Thrust Bearing to Minimize Block Thrust Surface Friction. 100% USA Made.

Product Features:
  • The complete kits, which meet or exceed OEM performance requirements, ensure a quiet and maintenance-free experience
  • Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Cloyes Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides
  • Refer to our online catalog for detailed application-specific information
  • Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems.
See More

Cloyes Gear – Engine Timing Set (Part No.C-3023K)

Engine Timing Set

from

$44.99
Utilizes the latest in design and technology to offer complete chain sets. CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance. Utilizes the latest in design and technology to offer complete chain sets. Refer to our online catalog for detailed application-specific information. SET INCLUDES: C163 Engine Timing Chain (1 EA), S289 Engine Timing Crankshaft Sprocket (1 EA), S288 Engine Timing Camshaft Sprocket (1 EA).

Product Features:
  • Timing Set includes all components for a quick and efficient replacement
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Utilizes the latest in design and technology to offer complete chain sets
  • Refer to our online catalog for detailed application-specific information
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Cloyes Performance – High Performance Timing Set (Part No.9-3100AZ)

High Performance Timing Set

from

$254.99
HEX-A-JUST Allows for Infinite Valve Timing Adjustability of +/-6 Degrees to Tune for Maximum Engine Performance Output. One Piece Camshaft Sprocket Design Featuring a Billet Eccentric Camshaft Dowel Bushing. Both Billet Steel Sprockets are Heat Treated for Durability. TRUE Roller 0.250″ Roller Diameter “Z” Chain for Reduced Friction. “Z” Chain Approximately 33% Overall Increased Strength Over the Standard High Performance Chain. “Z” Chain Featuring a Press Fit Center Link design that Increases Load Distribution with Heat Treated and Processed Links to Maximize Ultimate Breaking Strength while Remaining Ductile for Toughness and Pre-stressed to Increase Fatigue Life. Includes Captured Needle Camshaft Sprocket Thrust Bearing to Minimize Block Thrust Surface Friction. 3-Piece Sets Hand-Matched to Qualify the Correct Center Distance and Minimize Runout.

Product Features:
  • The complete kits, which meet or exceed OEM performance requirements, ensure a quiet and maintenance-free experience
  • Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Cloyes Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides
  • Refer to our online catalog for detailed application-specific information
  • Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems.
See More

Most Popular Timing Cam Gear for 2003 Chevrolet Blazers

Enhance your 2003 Chevrolet Blazer with this popular Timing Cam Gear we have in stock, for $27.99.

Cloyes Gear – Engine Timing Camshaft Sprocket (Part No.S836T)

Engine Timing Camshaft Sprocket

from

$27.99
Sprocket Made From High Alloy Material. Features Precision Tooth Form To Assure Proper Chain Engagement, And Is Balanced For Proper Timing.

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Refer to our online catalog for detailed application-specific information
See More

Best-Selling 2003 Chevrolet Blazer Timing Chain Tensioner

Upgrade your Blazer with our best-selling Timing Chain Tensioner.

INA US – ENG TMNG CHN TNS KIT (Part No.ZT-9-5452)

ENG TMNG CHN TNS KIT

from

$99.99
ENG TMNG CHN TNS KIT

Top-Quality Timing Covers for 2003 Chevrolet Blazers

Choose a high-quality OEM or aftermarket Timing Cover for Chevrolet Blazers and enjoy top-notch performance from $51.99.

Dorman – Timing Cover with Gasket and Seal (Part No.635-502)

Timing Cover with Gasket and Seal

from

$51.99
This direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.

Product Features:
  • Direct replacement – this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction – this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution – offers original equipment quality at a competitive price
  • Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
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Our Top Pick for a 2003 Chevrolet Blazer Timing Set

Invest in a durable Timing Set for your 2003 Chevrolet, knowing you’re getting trusted brands and expert craftsmanship.

Cloyes Gear – Engine Timing Set (Part No.C-3212)

Engine Timing Set

from

$44.99
Utilizes the latest in design and technology to offer complete chain sets. CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance. Utilizes the latest in design and technology to offer complete chain sets. Refer to our online catalog for detailed application-specific information. SET INCLUDES: S836T Engine Timing Camshaft Sprocket (1 EA), S835 Engine Timing Crankshaft Sprocket (1 EA), 9-4190 Engine Timing Chain (1 EA).

Product Features:
  • Timing Set includes all components for a quick and efficient replacement
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Utilizes the latest in design and technology to offer complete chain sets
  • Refer to our online catalog for detailed application-specific information
See More

Engine Timing Chain Kits for 2003 Chevrolet Blazers

Make a smart move for your 2003 Chevrolet Blazer with products all priced from $39.99 to $161.99.

Cloyes Gear – Engine Timing Chain Kit (Part No.9-4190S)

Engine Timing Chain Kit

from

$109.99
Timing Chain Kits. Cloyes is leading manufacturer of timing systems products, including a wide range of complete kits for a variety of domestic and foreign nameplates. Leveraging its expertise in timing drive systems, Cloyes utilizes the latest in design and technology to offer complete timing chain kits. The complete kits, which meet or exceed OEM performance requirements, ensure quiet and maintenance-free experience. Cloyes parts are CAD designed and manufactured using advanced materials. Each part is extensively tested for function and durability to ensure optimal performance. Cloyes Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides. Refer to our online catalog for detailed application-specific information. SET INCLUDES: S836T Engine Timing Camshaft Sprocket (1 EA), 9-5452 Engine Timing Chain Tensioner (1 EA), 9-4190 Engine Timing Chain (1 EA), S835 Engine Timing Crankshaft Sprocket (1 EA).

Product Features:
  • Meet or exceed OEM performance requirements, ensuring a quiet and maintenance free experience
  • Utilizes the latest in design and technology to offer a complete chain kit solution
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
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INA US – ENG TIMING CHAIN KIT (Part No.ZC-9-4190S)

ENG TIMING CHAIN KIT

from

$161.99
ENG TIMING CHAIN KIT

Dayco – TIMING CHAIN KIT (Part No.KTC1386)

TIMING CHAIN KIT

from

$101.99
With the backing of an industry-leading two year or 60,000 mile parts and labor warranty, each Dayco timing chain kit includes top-grade timing chains, precision machined crank sprockets and cam sprockets, tensioners, high-grade plastic guides, seals and VVT solenoids and cam phasers if the application calls for it.

Product Features:
  • High quality chains prevent stretch for the life of the kit, addressing the no. 1 replacement issue
  • Precision machined sprockets for exact timing
  • High-grade plastic guides use same material as OE for excellent wear resistance
  • Contains: Camshaft Sprocket, Crankshaft Sprocket, Timing Chain, Chain Tensioner
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Dayco – TIMING CHAIN KIT (Part No.KTC1365)

TIMING CHAIN KIT

from

$39.99
With the backing of an industry-leading two year or 60,000 mile parts and labor warranty, each Dayco timing chain kit includes top-grade timing chains, precision machined crank sprockets and cam sprockets, tensioners, high-grade plastic guides, seals and VVT solenoids and cam phasers if the application calls for it.

Product Features:
  • High quality chains prevent stretch for the life of the kit, addressing the no. 1 replacement issue
  • Precision machined sprockets for exact timing
  • High-grade plastic guides use same material as OE for excellent wear resistance
  • Contains: Camshaft Sprocket, Crankshaft Sprocket, Timing Chain
See More

FAQs for 2003 Chevrolet Blazer Engine Timing Parts

What are the best-selling Engine Timing Parts for 2003 Chevrolet Blazers?

Out of 12 Engine Timing Parts that fit 2003 Chevrolet Blazers, the following parts are the top sellers:

What’s the price range for 2003 Chevrolet Blazer Engine Timing Parts?

The prices of Engine Timing Parts for the 2003 Chevrolet Blazer range from $15.99 up to $161.99 for the most premium parts.

What is the average price of an Engine Timing Part for a 2003 Chevrolet Blazer?

The average price for Engine Timing Parts for the 2003 Chevrolet Blazer is $68.16. Keep in mind the variety of part types within our Engine Timing Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Timing Parts for other Chevrolet Blazer model years?

Yes, we carry Engine Timing Parts for 24 model years of Chevrolet Blazers between 1969 and 2019. The following model years are the most popular for Engine Timing Part purchases: 2019, 2005, 2004, 2002, 2001, 2000, 1999, 1998, and 1997.

What are the cheapest Engine Timing Parts for my 2003 Chevrolet Blazer?

The cheapest 2003 Chevrolet Blazer Engine Timing Parts we carry are:

Does Advance Auto Parts sell Engine Timing Parts for any other 2003 Chevrolet models?

Yes. We stock Engine Timing Parts for 31 other popular 2003 Chevrolet models. Some of the most popular are 2003 Tahoe Engine Timing Parts, 2003 Impala Engine Timing Parts, 2003 Silverado 1500 Engine Timing Parts, 2003 Malibu Engine Timing Parts, and 2003 Suburban 1500 Engine Timing Parts.

What types of Engine Timing Parts do you sell for my 2003 Chevrolet Blazer?

As of 3/1/26, these are some of the most in-demand types of Engine Timing Parts for a 2003 Chevrolet Blazer:

Can I get help with 2003 Chevrolet Blazer Engine Timing Part orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Chevrolet Engine Timing Parts and more.

What is your return policy for Chevrolet Blazer Engine Timing Parts?

Advance Auto Parts keeps returns simple. For new Chevrolet Blazer Engine Timing Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.