Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"Brake Master Vac Assembly 8-97162798-1 For ISUZU NKR77 4JH1 8971627981 Brake","imgUrl":"https:\/\/img.chinax.com\/nimg\/03\/d7\/07faa6e6cbb447007e5d99c961c8-200x200-1\/brake_master_vac_assembly_8_97162798_1_for_isuzu_nkr77_4jh1_8971627981_brake.jpg","attrs":{"Model Number":"ISUZU NKR77 Series","Master Cylinder Type":"Hydraulic Tandem Master Cylinder","Minimum Order Quantity":"10 pcs","Delivery Time":"5-8 Work Days"}}
{"title":"ISUZU NHR KY SHAFT AXLE RR 8944754330 8970830941 2403119A","imgUrl":"https:\/\/img.chinax.com\/nimg\/04\/cf\/ab2c3aac408b2ea3999c545d63ac-200x200-1\/isuzu_nhr_ky_shaft_axle_rr_8944754330_8970830941_2403119a.jpg","attrs":{"Model Number":"NHR KY","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"ISUZU NHR NKR N720 600P SHOCK ABSORBER 2905100A 9516306651 8942493330 TK-3169","imgUrl":"https:\/\/img.chinax.com\/nimg\/cc\/5d\/baf9e7c03d051e2297ee76325474-200x200-1\/isuzu_nhr_nkr_n720_600p_shock_absorber_2905100a_9516306651_8942493330_tk_3169_290510011.jpg","attrs":{"Model Number":"NHR NKR N720 600P","Place of Origin":"Made in China","Minimum Order Quantity":"5PCS","Supply Ability":"10000pcs\/month"}}
{"title":"ISUZU 6U BUSHING RUBBER 1-87610082-0 1876100820 1515191431","imgUrl":"https:\/\/img.chinax.com\/nimg\/d0\/cb\/5e3327b09bcd19f4b82d4e7fef6f-200x200-1\/isuzu_6u_bushing_rubber_1_87610082_0_1876100820_1515191431.jpg","attrs":{"Model Number":"6U","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"ISUZU NKR 4JB1 4JA1 4JH1 BELT P S 5-87610059-0 5876100590 8944529040","imgUrl":"https:\/\/img.chinax.com\/nimg\/ce\/2a\/e91e924cdaaf26406eafe6734236-200x200-1\/isuzu_nkr_4jb1_4ja1_4jh1_belt_p_s_5_87610059_0_5876100590_8944529040.jpg","attrs":{"Model Number":"4JB1 4JA1 4JH1","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"ISUZU TFR TFS UC TBR 4JA1 4ZE1 TANK ASM OIL,P\/S 8-94105282-6 8941052826","imgUrl":"https:\/\/img.chinax.com\/nimg\/24\/d5\/3f1fca6ad84bfeaa54d5f98fbf20-200x200-1\/isuzu_tfr_tfs_uc_tbr_4ja1_4ze1_tank_asm_oil_2cp_2fs_8_94105282_6_8941052826.jpg","attrs":{"Model Number":"TFR TFS UC TBR 4JA1 4ZE1","Place of Origin":"Made in China","Minimum Order Quantity":"5 PCS","Supply Ability":"10000pcs\/month"}}
{"title":"ISUZU TFR54 4JA1 ROD END TRACK ROD 8944594800 8970209530","imgUrl":"https:\/\/img.chinax.com\/nimg\/67\/bf\/f6819a6129f82df7cc5baa26d680-200x200-1\/isuzu_tfr54_4ja1_rod_end_track_rod_8944594800_8970209530.jpg","attrs":{"Model Number":"TFR54 4JA1","Place of Origin":"Made in China","Minimum Order Quantity":"5PCS","Supply Ability":"10000pcs\/month"}}
Brake Master Vac Assembly 8-97162798-1 For ISUZU NKR77 4JH1
Premium-quality integrated brake master cylinder and vacuum booster assembly designed specifically for ISUZU NKR77 trucks with 4JH1 diesel engines.
Product Overview
The Brake Master Vac Assembly / Brake Master Cylinder with Vacuum Booster (OEM Numbers: 8-97162798-1 / 8971627981) is a precision-engineered replacement component that combines the brake master cylinder and vacuum booster into a single unit. This assembly amplifies driver pedal force using engine vacuum to deliver powerful, responsive braking performance with minimal pedal effort.
Long Service Life: Engineered for reliability in demanding appliions
Vehicle & Engine Compatibility
This brake master vac assembly is specifically designed for ISUZU light to medium-duty trucks:
ISUZU NKR77 – Light to Medium-Duty Trucks
ISUZU NHR – Light-Duty Trucks (select models)
ISUZU NPR (select models with 4JH1 engine)
ISUZU ELF (select models with 4JH1 engine)
ISUZU 4JH1 Engine Specifiions
4-Cylinder, Inline Diesel
Displacement: 3.0L (2999cc)
Turbocharged, Intercooled
Valvetrain: DOHC
Widely used in NKR77 and various medium-duty trucks
Installation Notes
Professional installation required. Brake system safety is critical.
Disconnect battery – Disconnect the negative battery cable before beginning work
Depressurize the brake system – Pump the brake pedal several times to release vacuum pressure
Drain brake fluid – Drain the brake fluid from the master cylinder reservoir
Disconnect brake lines – Carefully disconnect the brake lines from the master cylinder
Disconnect vacuum hose – Disconnect the vacuum supply hose from the booster
Remove the old assembly – Unbolt and remove the brake master vac assembly from the firewall
Inspect the brake pedal linkage – Check the push rod and pedal linkage for wear or damage
Inspect vacuum hose – Check the vacuum supply hose for cracks or damage; replace if necessary
Check the check valve – Verify the one-way check valve functions properly
Clean mounting area – Clean the firewall mounting surface and surrounding area
Prepare the new assembly – Inspect the new assembly and verify it matches the original
Adjust push rod length – Adjust the push rod length to match the original assembly (if adjustable)
Install the new assembly – Position the new assembly on the firewall and secure with mounting bolts
Torque to specifiion – Tighten mounting nuts to manufacturer specifiion
Reconnect vacuum hose – Reconnect the vacuum supply hose to the booster
Reconnect brake lines – Reconnect the brake lines to the master cylinder
Reconnect battery – Reconnect the negative battery cable
Fill with brake fluid – Fill the master cylinder reservoir with the recommended brake fluid
Bleed the brake system – Bleed the entire brake system to remove all air
Test operation – Start the engine and test brake pedal feel and booster operation
Check for leaks – Inspect all connections for vacuum or brake fluid leaks
Road test – Test drive the vehicle to verify proper braking performance
Quality Control
Material Verifiion: Confirms housing, diaphragm, and seal materials meet OE specifiions
Dimensional Inspection: Mounting points, push rod length, and master cylinder bore verified against OEM tolerances
Vacuum Integrity Testing: 100% tested for vacuum retention and leak-free operation
Hydraulic Pressure Testing: Master cylinder pressure and seal integrity verified
Diaphragm Integrity Testing: Diaphragm flexibility and durability verified
Performance Testing: Boost ratio and hydraulic output verified under simulated operating conditions
Corrosion Testing: Housing treated for corrosion resistance in demanding environments
Visual Inspection: 100% checked for defects, machining flaws, or damage
Packaged Safely: Protected and securely packaged to prevent damage and contamination
Packaging and Delivery
Neutral export packing or customized packaging available
Carton or wooden case for safe transportation
Fast delivery for stock items
Shipping by Express Air or Sea
Inquiry
For pricing, availability, or bulk purchase of the Brake Master Vac Assembly 8-97162798-1 For ISUZU NKR77 4JH1 8971627981 Brake Parts, please contact our sales team for a competitive quote and expert technical support.
Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ... Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ...
