Nissan D21 Transmission Parts

Please Select your Vehicle to See Exact Fit Parts

Essential Nissan D21 Transmission Parts

National – Multi Purpose Seal (Part No.221207)

Multi Purpose Seal

from

$11.99
Product Features:
  • Design type: spring loaded; single-lip
  • Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

Imperial – Plate and Fin Style Transmission Cooler, Light Duty, 3/4" x 5-7/8" x 11" (Part No.243006)

Plate and Fin Style Transmission Cooler, Light Duty, 3/4" x 5-7/8" x 11"

from

$61.99
The Imperial Maxi-Cool XL’s plate and fin design offer excellent cooling efficiency in a compact, space-efficient design.

Product Features:
  • Imperial Rapid-Cool plate and fin transmission cooler
  • Size: 3/4″ x 11″ x 6″
  • Sub-compact to compact cars
  • GVWR up to 18,000 lbs.
  • Compatible with OEM cooler systems
  • Compatible with OEM cooler systems
  • Ultrasonically soldered for reliability
  • 100% pressure testing to 150 PSI for quality assurance
  • High efficiency turbulators
See More

Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT3)

Bearing - TRB (Tapered Roller Bearing)

from

$20.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.

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
See More

Dorman – Clutch Pilot Bushing .629 In. x .816 In. Type A, Length .689 In. (sold by each) (Part No.690-004)

Clutch Pilot Bushing .629 In. x .816 In. Type A, Length .689 In. (sold by each)

from

$2.99
This clutch pilot bushing is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this clutch pilot bushing matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bushing is a reliable replacement for an original part that has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Imperial – Transmission Oil Cooler Reinstallation Kit (Part No.248002)

Transmission Oil Cooler Reinstallation Kit

from

$25.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

Product Features:
  • Transmission cooler reinstallation kit
  • Contains part numbers 248001, 226201, 240250 and 4 hose clamps
  • Provides all hardware for reinstallation of Imperial transmission coolers
  • Contains nylon mounting rods, foam pads, locking buttons, hose and fitting
  • Made of high grade nylon for easy installation
  • Removable buttons for cooler/fan relocation
  • Made for both transmission coolers and electric fan installation
  • Comes with Quick Connect coupler
See More

National – Multi-Purpose Bearing (Part No.A-3)

Multi-Purpose Bearing

from

$14.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • CONSISTENT PERFORMANCE — Matched cup and cone components ensure consistent performance
  • 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
See More

Carquest Premium – Neutral Safety Switch (Part No.SAC3926)

Neutral Safety Switch

from

$126.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Neutral Safety Switch prevents the engine from starting unless the transmission is in neutral or park, enhancing safety by reducing the risk of accidental movement while starting the vehicle. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.

Product Features:
  • Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
  • Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
  • Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
  • Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
See More

Driveworks – Main Bearing Repair Sleeve (Part No.S-99181)

Main Bearing Repair Sleeve

from

$43.49
Product Features:
  • Brand may vary by location
See More

National – Differential Pinion Seal (Part No.710245)

Differential Pinion Seal

from

$24.29
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:
  • Design type: spring loaded; multi-lip
  • Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
  • Resistance to EP lubricants
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

National – Multi-Purpose Bearing (Part No.30208)

Multi-Purpose Bearing

from

$31.99
Product Features:
  • CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
  • PREMIUM MATERIALS: Precision manufactured using high-quality materials for durability and performance
  • 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
See More

National – Shaft Repair Sleeve (Part No.99181)

Shaft Repair Sleeve

from

$37.99
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:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
See More

Carquest Premium – Vehicle Speed Sensor (Part No.SBC3817)

Vehicle Speed Sensor

from

$127.99
Carquest Premium vehicle speed sensors are designed to perform in harsh environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium vehicle speed sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Each vehicle speed sensor undergoes extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium speed sensors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • O-rings or seals are included (where applicable)
  • Magnet size and strength optimized for precise signal output.
  • Weather-tight connectors prevent leaks and corrosion for longer life
  • Extensive design validation testing and 100% end-of-line tested
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
See More

ATP – AUTO TRANS BAND (Part No.NX-30)

AUTO TRANS BAND

from

$36.49
AUTO TRANS BAND

National – Multi Purpose Seal (Part No.710324)

Multi Purpose Seal

from

$13.49
Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

Carquest Premium – Back Up Light Switch (Part No.SBA4472)

Back Up Light Switch

from

$27.49
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Back Up Light Switch automatically activates the rear backup lights when the vehicle is shifted into reverse. This improved visibility for the driver and alerts other vehicles or pedestrians when the vehicle is reversing, reducing the risk of accidents. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.

Product Features:
  • Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
  • Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
  • Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
  • Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
See More

Schaeffler – Repair Sleeve (Part No.SR3501)

Repair Sleeve

from

$62.99
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
See More

Schaeffler – Bearing – DGBB (Deep Groove Ball Bearing) (Part No.6208-C3)

Bearing - DGBB (Deep Groove Ball Bearing)

from

$24.79
We develop and produce high-quality roller bearings, spherical bearings, and plain bearings worldwide for a wide range of applications.

Product Features:
  • Radial Ball Bearing, Both Sides Shield.
  • Coverage of classic and new high-tech solutions for the best system coverage
See More

National – Multi-Purpose Seal (Part No.2027)

Multi-Purpose Seal

from

$3.79
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:
  • Design type: spring loaded; single-lip
  • Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

ATP – AT MASTER REPAIR KIT (Part No.NM-20)

AT MASTER REPAIR KIT

from

$901.99
AT MASTER REPAIR KIT

National – Multi-Purpose Bearing (Part No.204)

Multi-Purpose Bearing

from

$18.99
Product Features:
  • BUILT TO LAST: Advanced heat treatment process for strength
  • PREMIUM MATERIALS: Precision manufactured using premium-grade steel for lasting performance and extended bearing life
  • RELIABLE PERFORMANCE: Element size and quantity are engineered to meet or exceed the load rating of OE bearings
  • 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
See More

National – Manual Transmission Extension Housing Seal (Part No.224215)

Manual Transmission Extension Housing Seal

from

$14.49
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:
  • Design type: spring loaded; multi-lip
  • Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
  • Resistance to EP lubricants
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

Schaeffler – Shaft Seal (Part No.SS2277)

Shaft Seal

from

$13.29
Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.

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
See More

Helping You Find the Right Transmission Parts for Your Nissan D21

You love your D21. So we’ve made it easier than ever to help you find Nissan D21 Transmission Parts in our online catalog. Our inventory holds 51 aftermarket and OEM Transmission Parts for your Nissan D21, ranging from $2.99 to $901.99.

We offer parts from 10 brands trusted to make quality Transmission Parts for your Nissan D21. Before you buy, take some time to read through customer reviews. We currently have 896 reviews of Nissan D21 Transmission Parts from previous customers. Some of the top rated parts include Multi-Purpose Seal with 4.4 stars and Plate and Fin Style Transmission Cooler, Heavy Duty, 3/4" x 9-1/2" x 11" with 4.5 stars.

Find your D21 Transmission Parts here, order online, and have your order shipped directly to your home. Prefer to have an in-person look at your Nissan D21 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 Nissan D21

Our inventory holds Transmission Parts for your Nissan D21 from 10 trusted brands. You’ll find OEM and aftermarket parts from brands like Imperial, National, and Anchor, all of which can keep that Nissan happy.

FAQs for Nissan D21 Transmission Parts

What are the most purchased Transmission Parts for the Nissan D21?

Out of 51 Transmission Parts for the Nissan D21, the most popular in our inventory are:
Multi-Purpose Bearing
from $14.99
(21)
Multi-Purpose Bearing
Countershaft Bearings
Econo-Kool Transmission Oil Cooler
from $40.99
(10)
Econo-Kool Transmission Oil Cooler
OE Transmission Coolers
Transmission Oil Cooler Reinstallation Kit
from $25.99
(4)
Transmission Oil Cooler Reinstallation Kit
Transmission Oil Cooler Fittings

What are the top-rated Nissan D21 Transmission Parts?

Top-rated Transmission Parts for your Nissan D21 based on customer reviews/ratings are:
Multi-Purpose Seal
from $16.49
(20)
Multi-Purpose Seal
“Fit perfect”
Plate and Fin Style Transmission Cooler, Heavy Duty, 3/4" x 9-1/2" x 11"
from $80.99
(8)
Plate and Fin Style Transmission Cooler, Heavy Duty, 3/4" x 9-1/2" x 11"
“Used this cooler to replace the missing factory one on my Polaris 330 ATV. Made an adapter plate to fit to the fan housing. Works great, beats the $30”
Econo-Kool Transmission Oil Cooler
from $52.99
(4)
Econo-Kool Transmission Oil Cooler
“I just like the additional cooling on all my vehicles for transmission to last longer. They aren’t getting any cheaper to overhaul!”