Best Dorman Transmission Hard Parts in 2026

Daisy
Last Updated: Jul 19, 2026

At a Glance: Our Top Picks for Dorman Transmission Hard Parts

GM Genuine Parts 24230298 Automatic Transmission 1-2 and 3-4 Shift Solenoid Valve, Metal
#TOP1
Gm Genuine Parts 24230298 Automatic Transmission 1-2 And
9.8
PM SCORE
B&M 20462 Transmission Lever
#TOP2
B&M 20462 Transmission Lever
9.7
PM SCORE
ACDelco Professional 214-1893 Automatic Transmission Control Solenoid
#TOP3
Acdelco Professional 214-1893 Automatic Transmission Control Solenoid
9.5
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Dorman Transmission Hard Parts of 2026

Market Overview
Dorman Transmission Hard Parts Reviewed
  • Reviews Analyzed: 4591 Items
  • PM Avg. Rating: 6.2 / 10
33 Products Evaluated
  • Highest Price: $209.99
  • Lowest Price: $6.99
  • Avg. Price: $60.91

Gm Genuine Parts 24230298 Automatic Transmission 1-2 And 3-4 Shift Solenoid Valve, Metal

GM
24230298
2.20 X 2.20 X 2.20 Inches
0.17 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GM-recommended replacement part for your GM vehicle’s original factory component

Offering the quality, reliability, and durability of GM OE

Manufactured to GM OE specification for fit, form, and function

B&M 20462 Transmission Lever

B&M
20462
0.00 X 0.00 X 0.00 Inches
0.11 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

This is the lever that attaches select B&M shifters to the transmission

Applications include GM TH400, 350, 250, 2004R, and 700-R4 transmissions

Genuine B&M accessory

Backed by the manufacturer with a 1 year limited warranty

Acdelco Professional 214-1893 Automatic Transmission Control Solenoid

ACDELCO
214-1893
4.10 X 4.10 X 3.60 Inches
0.15 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Professional, premium aftermarket replacement

Provides the performance and dependability you expect from ACDelco

Manufactured to meet expectations for fit, form, and function

For proper installation or programming instructions, contact your nearest GM Dealer or ACDelco Service Center

Lokar Aca-1800 Billet Adjustable Column Arm Kit For Gm Th-350/Th-400 Transmission

LOKAR
ACA-1800
23.13 X 5.88 X 0.75 Inches
1.22 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Elite Tool Center 9.20

Features

Billet aluminum offers rigidity

3/4-48 spline allows proper ratio

Designed for column shift

U-cut-to-fit stainless connecting rod

No threading necessary

Fit type: Vehicle Specific

#TOP5

4L60E Transmission Shift Solenoid Valve Set For Gm Chevrolet Buick Transmission 1-2 2-3 A & B Shift Replace 24230298 Oem (2Pcs)

NMN PRECISION
24230298
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NMN Precision 9.54

Features

4L60E Transmission Shift Solenoid Replaces OEM # 24230298,10478120,10478112,10478131;

4L60E Shift Solenoid Valve fits: 2004 Buick Rainier,2004-2005 Cadillac Escalade,2003-2005 Cadillac Escalade EXT,1993-2005 Chevrolet Astro,2003-2005 Chevrolet Avalanche,1500 1994-2005 Chevrolet Blazer,1994-1998 Chevrolet C1500,1993-1998 Chevrolet C2500,2004-2012 Chevrolet Colorado,1994-2013 Chevrolet Corvette,2002-2013 Chevrolet Express 1500.

4L60E 4L65E 4L70E Transmission Shift Solenoid Valve uses laser welding and Viton sealing system, High Quality Plastic and Metal Material, Ensure High Performance; Meets or exceeds OEM standards;

Package included: 2 x Transmission Shift Solenoids;

Searching related installation video on the internet will be recommended and always wear eye protection.

Sonnax 7774902K Shell, Reaction Sun (The Smart

SONNAX
TMX342-4902
9.60 X 9.80 X 6.90 Inches
0.11 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MaxxIndustries 9.54

Features

Heavy Duty Reaction...

Enclosed Thrust Bearing...

Custom Roller Clutch Race Stripped or cracked shells in GM 4L60, 4L60-E, 4L65-E and 4L70-E units are a common problem, but strengthening the shell alone does nothing to address the equally common problem of a failed rear planet captured bearing. The Sonnax SmartShell 77749-02K is a heavy duty reaction shell kit designed to prevent damage to the rear planetary assembly as well as provide a reinforced shell.Protecting the Planetary BearingIn the OE sun gear shell, the thrust load passes from...

Transmission Dipstick Stainless Braided Hose Th350 Th-400 700R4 Tranny Sbc Bbc Trans For Chevy Gm

JAHYSHOW
BM-P961
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
JahyShow 9.66

Features

👍 The stainless transmission dipstick with excellent quality looks great inside any engine bay!

👍 It is characteristic with billet handle and stainless steel braided housing to prevent leaks.

👍 The transmission dipstick is made of high-quality stainless steel which lasts for a long time.

👍 Machined billet braided handle and stainless steel housing, so there are no worries about rust.

👍 Flexible transmission dipstick fits for Chevy / for GM TH350 TH-400 700R4 turbo transmissions.

Lokar Kd-2350U Stainless Steel Kickdown Bracket Kit With Black Housing For Gm 350 Transmission

LOKAR
KD-2350U
18.00 X 8.75 X 2.00 inches
0.40 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ADVENTURER'S BAG 9.90

Features

Feature aluminum fittings

Adaptable to all types of manifolds

High performance

Made in the U.S.A

General Motors Genuine Parts 20880895 Automatic Transmission Auxiliary Fluid Cooler

GENERAL MOTORS
20880895
17.10 X 8.30 X 3.30 Inches
1.04 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Helps maintain proper transmission operating temperatures

GM-recommended replacement part for your GM vehicle’s original factory component

Offering the quality, reliability, and durability of GM OE

Manufactured to GM OE specification for fit, form, and function

Keenso Th350 Kickdown Cable, Silver Stainless Steel Braided Kickdown Cable For 350 Turbo Transmission Assembly Detent Kickdown For Chevy Th350

KEENSO
KEENSOB46O2FX0WI
0.00 X 0.00 X 0.00 Inches
0.35 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Geeriu 9.74

Features

【Compatibility With】-- Th350 Kickdown Cable, fit for GM(Chevy, Olds, etc.)350 TH350 Transmissions. Please check the vehicle model before purchasing

【Durable Stainless Steel】-- Our turbo 350 kickdown cable is made of premium staninless steel material, sturdy and solid, durable for long lasting performance

【Specifications】-- Material: Stainless Steel, Color: Silver, Package Weight: approx. 160g, Fitment: for GM(Chevy, Olds, etc.)350 TH350

【Wide Application】-- This ickdown cable for 350 turbo transmission is adaptable to all types of manifolds, universally applied

【Easy to Install】-- Our kickdown cable turbo 350 is easy to install, very practical and simple, perfect replacement for the old one

Painless Performance 60109 Torque Converter Lock-Up Kit For Th700R4 Transmission

EDELBROCK
60109
7.50 X 2.00 X 12.50 Inches
0.98 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Takes the guesswork out of controlling the lock-up function on your TH700R4 overdrive transmission

Works with both carbureted and fuel injected engines; Saves you from having to buy any separate, expensive computer-controlled equipment

Provided vacuum controlled switch and 4th gear pressure switch controls the torque converter lock up solenoid

Kit comes with everything needed to complete the installation and fits any GM TH700R4 transmission

Includes: Vacuum switch, 4th gear pressure switch, brake switch, torque converter lock-up solenoid, wire harness, new transmission pan gasket and mounting hardware

Acdelco 24224676 Gm Original Equipment Automatic Transmission Case Rear Extension With Seal

GM
24224676
16.75 X 8.50 X 8.38 Inches
3.64 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Recommended replacement part for your GM vehicle’s original factory component

Offering the quality, reliability, and durability

Manufactured to GM OE specification for fit, form, and function

Package Dimensions: 24.765 H x 20.955 L x 23.495 W (centimeters)

Fit type: Vehicle Specific

20-40 Stainless Transmission Kickdown Stud Kit For Transmission Kickdown And For Carb Carburettor Hookup

SEWEDER
20-40 TRANSMISSION KICKDOWN STUD
3.90 X 3.90 X 0.36 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
JornKery Direct 8.04

Features

Fits for GM Transmission Cables. For Transmission Kickdown. For Carburetor Hookup.

Features: Effective Mounting Point. Mounting point for transmission kickdown.

Diameter measures 5/16".

Kit includes: Stud, Nut, Lockwasher.

Metal-Clad Oil-Seal Ring, Auto-Trans Manual Shift Shaft Shifter/Selector Linkage Lever, Th350/Th400/Th700/4L60E Th-350/700/400

TRI COMPONENT
8657163K-2
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
High Performance International 5.30

Features

Industry Part ID: 8623056, 6261242, 44072, 38511, 23010610, 8657163

Fits all Rear Wheel Drive GM General Motors transmissions that use a metal clad seal including: TH-700-R4 (THM700-R4, TH700-R4, TMH-700-R4) 4L60, 4L6O TH-700-4R (THM700-4R, TH700-4R, TMH-700-4R) 4L60E 4L65E 4L70E 4L80E

TH-400 (TH400, THM-400, THM400) 3L80/3L80HD, TH-350 (TH350, THM-350, THM350)

Perfect for High-Performance, Heavy-Duty, Racing and Regular-Duty Transmissions

Contains 2 New Auto Trans Manual Shift Shaft/Clutch Linkage Selector Seals

For Chevy Th350 Stainless Steel Braided Transmission Kick Down Cable Detent Kickdown

ARAMOX
ARAMOXMQ7RSAC94B2586
0.39 X 0.39 X 0.39 Inches
0.31 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Mizucco c 9.64

Features

Advanced Material100% Brand New Kick Down Cable, The stainless steel material is solid and durable, resistant to abrasion and scratches, and can be used for a long time

EfficientBraided transmission kicks out the cable, professional manufacturing process fully meets the standard requirements, stable performance, long service life, safe and reliable

CraftsmanshipThe craftsmanship is precise and rigorous, and each product has been rigorously tested to ensure safe and efficient use

Easy to UseEasy to install, perfect replacement for the old one, Economical and practical. Let you get rid of the trouble of installation.

CompatibilityFit for GM(Chevy, Olds, etc.)350 TH350 Transmissions

#TOP16
Best For Gm

Ptnhz Racing Transmission Adapter Plate For 1962-Up Chevy Th350 Th400 Bop-To Silver Gm Turbo-Hydramatic Transmission 700R/4

PTNHZ RACING
US-EEMR03
100.00 X 100.00 X 50.00 Centimeters
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
PTNHZ 9.87

Features

For 1962-Up Chevy TH350 TH400 BOP-TO Silver GM Turbo-Hydramatic Transmission 700R/4

Material: made of high quality Steel.

High Quality,Good Operation.

Perfect match for the original car.

Professional Installation is Highly Recommended.

Governor & Cover O-Ring Seal,11-Tooth Gear, Fits Gm Th350/Th250 1969-On, Th-350/250. K35410A

TRI COMPONENT
K35410A
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING

Features

Governor Part ID: 35410, 8640234, A44680

Cover O-Ring Seal Part ID: 1241734, 44345, 13515. O-Ring seal is (Square/Lathe-Cut )

Governor Gear Teeth Count: 11. The governor is hydraulically tested to meet or exceed OEM specifications.

Perfect for High-Performance, Heavy-Duty, Racing and Regular-Duty Transmissions

Years: 1969 - 1986. Fits the following GM TurboTransmissions: TH350C (THM-350C THM350C), TH250C (THM-250C THM250C), TH350 (THM-350 THM350), TH250 (THM-250 THM250)

Acdelco Gm Original Equipment 88984493 Transfer Case Rear Output Shaft Rear Bearing Retaining Ring

ACDELCO
88984493
2.50 X 2.50 X 1.10 Inches
0.10 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

GM-recommended replacement part for your GM vehicle’s original factory component

Offering the quality, reliability, and durability of GM OE

Manufactured to GM OE specification for fit, form, and function

Th350 Dipstick,4L80E Dipstick,Automotive Door Panels,Stainless Steel 350 Transmission Dipstick Fit For Gm Th350 Tranny Sbc Bbc Trans

TBEST
TBESTIXKD9OCFN6
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Youluu 9.58

Features

Fitment: The transmission dipstick is especially designed to fit for and fit for GM TH350 Tranny SBC BBC Trans.

High Quality Stainless Steel----The transmission dipstick is made of high-quality stainless steel. The stainless steel has light weight, high strength, good resnce and heat resnce, and has high stability and good reliability

?★QUALITY ASSURANCE: All of our products are strict tested to ensure the best quality, more safer to use. We promise to provide you with brand new high-quality products and fast transportation services.

Prevent leakage: It has the function of billet handle and stainless steel braided shell, which can prevent leakage and no need to worry about rust. for sbc roc flexible transmission dipstick th350/th400

Prevent leaks-----Features with billet handle and stainless steel for Bfor RAIDed housing to prevent leaks, no worries about rust, reliable and durable

Top 10 transmission hard parts Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Gm 12
Acdelco 3
Tri Component 3
General Motors 2
Lokar 2
Aramox 1
B&M 1
Edelbrock 1
Jahyshow 1
Keenso 1

Top 10 transmission hard parts Brands Pie Chart


We've carried out a comprehensive analysis of 4,591 reviews on transmission hard parts, using our selection criteria to identify the best options in the automotive replacement parts. Our findings reveal that most customers typically select transmission hard parts priced around $60.91, with top brands including acouto, salior, gm, wit whatever it takes transmission parts, inc, lubegard, general motors, hot shot's secret, transmission parts direct and torras and gjautoparts

Our team of expert editors reviewed these high-quality items and handpicked the top 19 transmission hard parts for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive replacement parts category. These include soros, salior, amazon.com, maxxindustries, trutrans, torras®, gjautoparts, zhangxianxiong and fivehoo and aumtoni autoparts .

We are dedicated to assisting our users in finding the right parts Products based on their needs, saving them considerable time when choosing which transmission hard parts to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.