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NLT1I00252
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5-Piece Hydroboost Seal Kit 2771004 for GM Ford Dodge Units
$22.99
In Stock
$22.99
Sale price
$22.99
Regular price
This new five-piece hydroboost reseal kit replaces 2771004 for compatible GM, Ford, Dodge, and Chrysler hydraulic brake-assist units.
Estimated delivery between
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Compatible Bendix-style hydroboost units used in select Chevrolet and GMC vehicles
- Compatible Bendix-style hydroboost units used in select Ford vehicles
- Compatible Bendix-style hydroboost units used in select Dodge and Chrysler vehicles
Product Overview
When fluid collects between the hydroboost and master cylinder or runs down the firewall, an owner may be facing an external seal leak rather than a failed power-steering pump. This five-piece service pack is for a known compatible booster that still has smooth shafts and undamaged bores.
This is a targeted reseal kit, not a remanufactured booster. It does not include every internal wear part and cannot fix a weak accumulator, cracked casting, scored input rod, or contaminated hydraulic system. Compare the unit ID and each seal profile before opening a brake-assist component.
Key Features & Performance
- Five-piece seal package for matching hydroboost designs
- Cross-reference 2771004 for common service identification
- Supports external-leak repair when hard parts pass inspection
- Small parts grouped for bench reseal work
Replaces Part Numbers
- 2771004
- GM-2771004
- K-777464
Common Uses
- Bench resealing a correctly identified hydroboost unit
- Stopping a leak at a serviceable shaft or housing seal
- Completing hydraulic brake-assist repair without replacing good hard parts
Technical Specifications
- Product Type: Hydroboost reseal kit
- Quantity: 5 pieces
- Fluid System: Power-steering hydraulic brake assist
- Repair Scope: Seal service only
- Condition: New aftermarket kit
Installation & Fitment
- Confirm unit family and reference before teardown
- Discharge stored accumulator pressure safely
- Photograph seal orientation during disassembly
- Reject worn, pitted, cracked, or scored hard parts
- Bleed the hydraulic assist system and perform a stationary brake test before driving
Compatibility Notice
Northline Parts does its best to list all known compatible models. The correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Is this a complete hydroboost rebuild kit? A: No. It is a five-piece seal kit for matching leak points.
Q: Why might a reseal still leak? A: A worn shaft, damaged bore, incorrect seal orientation, dirty fluid, or a mismatched unit can cause repeat failure.
Q: Is the job safety-critical? A: Yes. Hydroboost provides brake assist, so correct service and testing are essential.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: 2771004 hydroboost seal kit, five piece brake booster reseal, GM Ford Dodge hydro boost repair, fluid leak behind master cylinder, Bendix hydroboost service seals
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.