GMC G25 Transmission Parts

Essential GMC G25 Transmission Parts

B & M – Transmission Cast Deep Pan, Brushed Finish TH-350 (Part No.30280)

Transmission Cast Deep Pan, Brushed Finish TH-350

from

$269.99
These B&M automatic transmission deep pans provide additional fluid capacity and cooling ability. No modifications to the dipstick are needed. They include a drain plug for clean and easy fluid changes. Adds 3 quarts to the Transmission.

Product Features:
  • Additional Oil Capacity
  • More Cooling Ability
  • No Dipstick Modification
  • Some Include Fluid Pickup Extension
  • Built-In Drain Plugs
  • Cast Aluminum
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Mr. Gasket – Automatic Transmission Dipstick With Tube (Part No.9690)

Automatic Transmission Dipstick With Tube

from

$42.49
Fits GM (General Motors) Powerglide transmissions with an aluminum case. Chrome plated dipstick that includes O-ring for a positive seal.

Product Features:
  • Chrome Plated
  • Includes O-Ring
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Pro-King – Automatic Transmission Vacuum Modulator (Part No.MD-33)

Automatic Transmission Vacuum Modulator

from

$28.99
Fully adjustable vacuum modulator to maintain accurate shift points.

Product Features:
  • Meets or exceeds OE fit, form and function
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Hays – Hays Race Tq Convtr Th400 36-4200 Stall (Part No.97-1D36F)

Hays Race Tq Convtr Th400 36-4200 Stall

from

$999.99
Hays Race Tq Convtr Th400 36-4200 Stall

National – Multi Purpose Seal (Part No.2043)

Multi Purpose Seal

from

$15.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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National – Taper Bearing Cone (Part No.LM501349)

Taper Bearing Cone

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$17.99
Manufactured with premium-grade steel, National® taper bearing cones feature crowned raceways and rollers to ensure even load distribution.

Product Features:
  • PREMIUM MATERIALS — Precision manufactured using premium-grade steel for outstanding durability and performance
  • SMOOTH ROTATION — Crowned raceways and rollers for even load distribution
  • OE-STYLE DESIGN — Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE — Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
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B & M – Cable Bracket (Part No.30498)

Cable Bracket

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$28.99
Cable Bracket, GM (Bandit style shifters only) APPLICATION: For TH-400, 350, 250, 200, 700R4, 200-4R with 80797, 80798 or 81050 shifter.

Product Features:
  • Shifter Service Parts
  • Steel
  • Natural Finish
  • Sold individually
  • Replacement for Bandit shifters
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FAG US – SHAFT SEAL (Part No.SS2571)

SHAFT SEAL

from

$16.79
SHAFT SEAL

B & M – Shifter Accessory, Pro Stick Aluminum Cover (Part No.80717)

Shifter Accessory, Pro Stick Aluminum Cover

from

$121.99
Replacement aluminum cover for your B&M Pro Stick.

Product Features:
  • Pro Stick; Brushed Aluminum Cover
  • Aluminum Cover
  • Replacement Part
  • Sold individually
  • B&M quality
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Permatex – Ultra Grey RTV Gasket Maker (9.5 oz.) (Part No.85084)

Ultra Grey RTV Gasket Maker (9.5 oz.)

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$32.99
OEM specified. Designed specially for high-torque and high vibration applications, like those common in import engines, this premium RTV gasket maker exceeds manufacturers’ performance requirements. Sensor-safe, low odor, and non-corrosive. Maximum vibration resistance, with outstanding resistance to oils, cooling and shop fluids. Temperature range -65ºF to 500ºF (-54 Deg. C to 260 Deg. C) intermittent.

Product Features:
  • Designed specially for high-torque and high vibration applications
  • Maximum vibration resistance with outstanding resistance to oils, cooling and shop fluids
  • OEM specified
  • Low-odor, non-corrosive formula
  • Temperature Range: -65 Deg. F to 500 Deg. F (-54 Deg. C to 260 Deg. C)
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ATP – Automatic Transmission Speedometer Pinion Seal (Part No.SO-13)

Automatic Transmission Speedometer Pinion Seal

from

$2.79
Product Features:
  • ATP Transmission Seals And Gaskets are exact fit, no compromise replacement parts
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B & M – Governor Recalibration Kit For TH-700R4, TH-400 and TH-350 Transmission (Part No.20248)

Governor Recalibration Kit For TH-700R4, TH-400 and TH-350 Transmission

from

$109.99
This kit allows you to adjust the shift points of your transmission after it is installed in your vehicle. The Governor Recalibration Kit is very useful if you have a vehicle that is very light; has a low rear-end gear ratio.

Product Features:
  • Adjust Shift Points Of Transmission
  • Useful For Light Vehicles
  • For Low Rear End Gear Ratio
  • Or Useful If It Is Conversion
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B & M – Cable Bracket (Part No.30499)

Cable Bracket

from

$28.99
Cable Bracket, GM APPLICATION: For TH400, 350, 250, 200, 700R4, 2004R transmissions.

Product Features:
  • Shifter Service Parts
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National – Bearings (Part No.M802011)

Bearings

from

$14.79
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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FAG US – SHAFT SEAL (Part No.SS2114)

SHAFT SEAL

from

$7.49
SHAFT SEAL

ATP – AT OIL PUMP SEAL (Part No.CO-4)

AT OIL PUMP SEAL

from

$14.99
AT OIL PUMP SEAL

FAG US – REPAIR SLEEVE (Part No.SR3506)

REPAIR SLEEVE

from

$56.99
REPAIR SLEEVE

ATP – AT EXT HOUSING SEAL (Part No.HO-8)

AT EXT HOUSING SEAL

from

$11.99
AT EXT HOUSING SEAL

National – Multi Purpose Seal (Part No.3638)

Multi Purpose Seal

from

$12.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
See More

Permatex – The Right Stuff Grey Instant Gasket Maker, 147ml Cartridge (Part No.34311)

The Right Stuff Grey Instant Gasket Maker, 147ml Cartridge

from

$28.49
Specifically designed to perform under higher torque loads associated with engines having closely spaced bolt patterns (typically import vehicles). This product is blowout resistant, allowing leakproof gaskets to be made and put into service in just one minute. Sensor-safe, The Right Stuff GREY seals instantly, forming a reliable, long lasting elastomeric rubber gasket that outperforms pre-molded gaskets. Specified by major import OEMs, this material is resistant to powertrain fluids (oil, coolant and ATF) and operates in environments to 450°F (232°C) continuous; 500°F (260°C) intermittent.

Product Features:
  • Ideal for rigid cast aluminum parts
  • Meets OEM Specifications
  • Sensor safe & non-corrosive
  • Performs under higher torque loads associated with engines having closely spaced bolt patterns (typical of import vehicles)
  • Blowout resistant, allowing leakproof gaskets to be made in just one minute
  • Seals instantly, forming a reliable, long lasting elastomeric rubber gasket
  • Superior resistance to powertrain fluids including engine oil, transmission fluid, gear lube and coolants
  • Temperature range -60°C to 260°C (-75°F to 500°F) intermittent
  • Applications: Automotive, industrial and marine gaskets, valve covers, gearbox covers, pumps, compressors, oil pans, thermostat housings, water pumps, etc.
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Driveworks – Taper Bearing Set (Part No.S-A-6)

Taper Bearing Set

from

$10.29
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Pro-King – Automatic Transmission Basic Rebuild Kit (Part No.KB-838)

Automatic Transmission Basic Rebuild Kit

from

$141.99
This Basic Rebuild Kit contains a complete gasket Kit and friction set. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.

Product Features:
  • Does not include steels or filter
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ATP – AT FRT PUMP BUSHING (Part No.CB-4)

AT FRT PUMP BUSHING

from

$10.99
AT FRT PUMP BUSHING

B & M – Shift Improver Kit For 68-81 TH-350 Transmission (Part No.30262)

Shift Improver Kit For 68-81 TH-350 Transmission

from

$62.99
HEAVY DUTY-Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. STREET/STRIP-Positive shifts for high performance street use or for competitive events. Hardest, quickest possible shift.

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
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B & M – Shift Improver Kit For 65-87 TH400 Transmission (Part No.20260)

Shift Improver Kit For 65-87 TH400 Transmission

from

$62.99
The B&M Shift Improver Kit the easiest way to get the performance you’ve always wanted out of your automatic transmission, two modes to select from: Heavy Duty, or Street/Strip. It’s our least expensive and simplest to install kit.

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
  • Improves Transmission Life
  • Transmission Removal Not Required
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GMC G25 Transmission Parts Categories

Helping You Find the Right Transmission Parts for Your GMC G25

You love your G25. So we’ve made it easier than ever to help you find GMC G25 Transmission Parts in our online catalog. Our inventory holds 180 aftermarket and OEM Transmission Parts for your GMC G25, ranging from $1.99 to $1,150.00.

We offer parts from 18 brands trusted to make quality Transmission Parts for your GMC G25. Before you buy, take some time to read through customer reviews. We currently have 13,618 reviews of GMC G25 Transmission Parts from previous customers. Some of the top rated parts include Cylindrical Bearing with 4.5 stars and Multi Purpose Seal with 4.4 stars.

Find your G25 Transmission Parts here, order online, and have your order shipped directly to your home. Prefer to have an in-person look at your GMC G25 part to confirm it’s just right? You can find your nearest Advance Auto Parts store and confirm they have the part in stock before heading over.

Top Transmission Parts Brands for Your GMC G25

Our inventory holds Transmission Parts for your GMC G25 from 18 trusted brands. You’ll find OEM and aftermarket parts from brands like Permatex, Imperial, and National, all of which can keep that GMC happy.
We have Felpro parts available for your GMC G25 in categories like Automatic Transmission Pan and Gaskets. Some of the top-rated Felpro parts in these categories are:
Transmission Oil Pan Gasket
from $8.49
(3)
Transmission Oil Pan Gasket
Transmission Pan Gaskets
Transmission Oil Pan Gasket
from $9.29
(5)
Transmission Oil Pan Gasket
Transmission Oil Pan Gaskets

Top-Rated Imperial Transmission Parts

Leading Imperial Transmission Parts

We carry Imperial brand parts for your GMC G25 across several catalog categories, including Transmission Cooler and Parts. Some of our most reviewed Imperial parts include:
High Performance Transmission Oil Cooler
from $81.99
(48)
High Performance Transmission Oil Cooler
OE Transmission Coolers
Maxi-Kool® XL Transmission Oil Cooler
from $81.99
(31)
Maxi-Kool® XL Transmission Oil Cooler
OE Transmission Coolers
Econo-Kool® Transmission Oil Cooler
from $54.99
(30)
Econo-Kool® Transmission Oil Cooler
OE Transmission Coolers

FAQs for GMC G25 Transmission Parts

What are the most purchased Transmission Parts for the GMC G25?

Out of 180 Transmission Parts for the GMC G25, the most popular in our inventory are:
Sensor-Safe, High-Torque RTV Silicone Gasket Maker
from $11.49
(95)
Sensor-Safe, High-Torque RTV Silicone Gasket Maker
Transmission Pan Gaskets
Taper Bearing Set
from $10.29
(38)
Taper Bearing Set
Countershaft Bearings
Bearings
from $15.99
(38)
Bearings
Countershaft Bearings

What are the top-rated GMC G25 Transmission Parts?

Top-rated Transmission Parts for your GMC G25 based on customer reviews/ratings are:
Cylindrical Bearing
from $22.99
(20)
Cylindrical Bearing
“Rebuilt back axel fit great”
Multi Purpose Seal
from $6.99
(20)
Multi Purpose Seal
“The product works well”
Econo-Kool® Transmission Oil Cooler
from $65.99
(11)
Econo-Kool® Transmission Oil Cooler
“In the instructions, a fitting kit #252 was required for my particular truck. It was wrong…#395 was the correct kit. Folks at Imperial advised me of”