What size is the bore inside and outside dimension? What is the spacing of the mounting bolts?

spacing 3.25". housing bore approx. 1 1/16" or 27mm. push rod bore approx. 1/2"

Does that fit on 2004 accord

No it doesn't. You need part#M630296 for the V6 models. Or part#M630295 fro the 4 cyl.

How do I stop payment of a automobile part that doesn't fit my vehicle?

Go into your account and click on Orders, then returns. Then fill out accordingly.

Dorman M39634 Brake Master Cylinder | Desertcart UNITED STATES

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Description

🚗 Upgrade your brake game with precision and peace of mind!

BUILT TO LAST - Premium EPDM rubber resists brake fluid degradation
EXACT OEM MATCH - Crafted to mirror original casting for flawless performance
TRUSTED STANDARDS - Manufactured under rigorous SAE International specs
GUARANTEED FITMENT - Use our garage tool to confirm perfect vehicle compatibility
100 NEW COMPONENTS - No remanufactured parts—pure quality and safety

The Dorman M39634 Brake Master Cylinder is a 100% new, precision replacement part designed specifically for select Ford models from the late '80s through early 2000s. Engineered with durable EPDM rubber components and built to meet strict SAE standards, it ensures reliable braking performance and a perfect fit verified through an easy-to-use vehicle compatibility tool. Backed by a limited lifetime warranty, this master cylinder delivers OEM-level quality and safety for your vehicle’s braking system.

Specifications

ASIN	B001PYNZ16
Assembly Required	No
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#89,775 in Automotive ( See Top 100 in Automotive ) #92 in Automotive Replacement Brake Hydraulic Parts
Brand	Dorman
Brand Name	Dorman
Customer Reviews	4.5 out of 5 stars 504 Reviews
Global Trade Identification Number	00082702399590
Included Components	Funnel
Is Assembly Required	No
Item Weight	1.6 ounces
Manufacturer	Dorman Products
Manufacturer Part Number	M39634
Manufacturer Warranty Description	Limited Lifetime Warranty
Model Number	M39634
OEM Equivalent Part Number	10-4008; 120369; 12198; 12343; 12989; 13-4008; 130.65001; 131.65001; 18M1755; 18M352; 2539634; 783-42001; 83-42001; BRMC-148; BRMC-63; BRMC-70; BRMC148; BRMC63; BRMC70; F114078; F120369; F129285; F141133; M-85001; M2198; M3017; M3020; M4049; M900558; MC114078; MC120369; MC120369A; MC141133; MC390695; MC39634; NM2198; NM3017; NM3020; NM4049; E7TZ-2140-C; E7UZ-2140-C; F4TZ 2140-E; F65Z 2140-DA; F75Z…
OEM Part Number	10-4008; 120369; 12198; 12343; 12989; 13-4008; 130.65001; 131.65001; 18M1755; 18M352; 2539634; 783-42001; 83-42001; BRMC-148; BRMC-63; BRMC-70; BRMC148; BRMC63; BRMC70; F114078; F120369; F129285; F141133; M-85001; M2198; M3017; M3020; M4049; M900558; MC114078; MC120369; MC120369A; MC141133; MC390695; MC39634; NM2198; NM3017; NM3020; NM4049; E7TZ-2140-C; E7UZ-2140-C; F4TZ 2140-E; F65Z 2140-DA; F75Z 2140-PA; YL3Z-2140-CA OEM Part Number 10-4008; 120369; 12198; 12343; 12989; 13-4008; 130.65001; 131.65001; 18M1755; 18M352; 2539634; 783-42001; 83-42001; BRMC-148; BRMC-63; BRMC-70; BRMC148; BRMC63; BRMC70; F114078; F120369; F129285; F141133; M-85001; M2198; M3017; M3020; M4049; M900558; MC114078; MC120369; MC120369A; MC141133; MC390695; MC39634; NM2198; NM3017; NM3020; NM4049; E7TZ-2140-C; E7UZ-2140-C; F4TZ 2140-E; F65Z 2140-DA; F75Z 2140-PA; YL3Z-2140-CA See more
Part Interchange Info	E7UZ-2140-C
UPC	082702399590
Unit Count	1.0 Count

Reviews

A**R

Quality parts

Exact fit and works great.

18.02.2026

C**D

Works just fine

Works just fine, just like the one I replaced :( Found the ABS pump to be bad, replaced the ABS pump, no fun, found a scanner is needed to help bleed the abs pump. It snowed so i used the snow to skid the car and engage the abs pump multiple times as opposed to paying for a scanner to engage the abs pump. Now breaks all work great.

6.06.2025

R**.

Brakes master cyclinder

Perfect fit for my truck

6.04.2026

C**B

Make and model

Great quality

23.03.2026

B**N

1988 F-150

Installed on my 1988 F-150 with the 351. Have put a few thousand miles on this master cylinder combined with a new vacuum booster. Works great!

1.11.2025

H**G

Good part.

Worked fine.

2.11.2025

T**R

Great quality and price!

Bench bleeding to some time to get all the air out but have no complaints! Fit 1993 f150 2wd

9.05.2024

T**C

The Dorman master cylinder works great.

Works great. Easy to bleed...... Easy to install

8.12.2024

A**T

Precio y calidad excelente

Precio bastante razonable, incluso la autoparte coincide con la original de ford, muy contento, ahorre más de la mitad del precio en el mercado.

23.09.2023

R**N

good product

work as it was made for it

2.02.2025

B**.

Es buena calidad

Trabajo muy bien recomiendo el producto de buena calidad

6.09.2023

L**R

Accurate to ad Product installed easily

Product was accurate to ad and installed easily seemed to cure my brake issue

4.04.2022

J**E

Exelente vendedor

Exelente producto

10.06.2023

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

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The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago