Bolaxin Diesel Injector Sleeve & Cup Seat Cleaning Brush Kit — Stainless Steel 2-Piece for Powerstroke, Caterpillar & Navistar

Bolaxin Diesel Injector Sleeve Cup Seat Cleaning Bore Brush Kit is a two-piece stainless steel brush set designed to safely remove carbon, rust and debris from injector bores and cup seats on a wide range of diesel engines.

When removing and servicing injectors, buildup in the sleeve, bore and cup seat can prevent proper sealing and seating — the Bolaxin kit provides dedicated tools to clean those critical surfaces without gouging or enlarging the bore. Built from wear-resistant stainless steel with comfortable ABS handles, the kit targets hard-to-reach crevices in engines from Ford Powerstroke and Caterpillar to Navistar, MaxxForce, GM, Cummins, John Deere and Isuzu HPCR platforms.

How does this kit protect injector seats while removing deposits?

The brushes are sized and shaped to clean deposits without overcutting or rounding the injector seat. One spiral tube brush scrubs the bore walls while the flat-bottom brush smooths and polishes the seat face for better sealing. Using the proper brush reduces the risk of leaks and improves injector reinstallation accuracy.

• Spiral tube brush scrubs circumference of sleeve bores to dislodge carbon and varnish.
• Flat-bottom brush cleans and polishes the injector cup surface for a better seal.
• Stainless steel filaments resist wear and corrosion for repeated use.
• ABS handles provide stable grip to avoid slipping and accidental damage.

Which engines and vehicles will this brush kit fit?

The Bolaxin kit was engineered for broad compatibility across many diesel platforms. It fits multiple Powerstroke generations, Caterpillar and Navistar engines as well as MaxxForce and common HD diesel models, making it a versatile shop or field tool. Check your injector sleeve dimensions against the brush sizes before use.

• Ford Powerstroke: 4.5L LCF, 6.0L, 6.4L, 6.7L and 7.3L models.
• Caterpillar: 3126, C7, C9 series and similar engines.
• Navistar and MaxxForce families including T444E, DT466, VT365, N9/N10 models.
• Also supports GM/Chevrolet 6.6L, Dodge Cummins, John Deere HPCR and Isuzu HPCR engines.

What materials and construction details improve durability and performance?

Bolaxin selected wear-resistant stainless steel for the brush filaments to resist corrosion and keep stiffness over long service life. The handles are molded ABS for comfort and control during repeated scrub cycles. The combination keeps the tools effective without introducing frangible components that could break off in the bore.

• High-strength stainless steel bristles resist rust and maintain abrasion performance.
• ABS plastic handles improve grip and reduce hand fatigue during extended use.
• Precision-formed brush shapes to match injector sleeve geometries without oversizing.
• Designed for repeated cleaning cycles in shop or field environments.

How should you use and maintain the brush kit for best results?

Work carefully with the engine cold or per manufacturer guidelines, remove injectors before aggressive cleaning, and use light pressure to avoid altering bore geometry. After cleaning, wipe seats and bores with solvent and inspect for scoring. Rinse and dry brushes after use and store them dry to prevent filament damage.

• Remove injectors and inspect sleeves before brushing.
• Use moderate, controlled strokes; avoid forcing the brush beyond the bore limits.
• Clean brushes with solvent, dry thoroughly and store in a dry environment.
• Replace brushes when filaments wear or deform to avoid ineffective cleaning.

Who is this for: The Bolaxin Diesel Injector Sleeve Cup Seat Cleaning Bore Brush Kit is aimed at professional diesel technicians, mobile mechanics and informed DIYers who perform injector removal, swap or rebuild work across multiple truck and equipment platforms. If you work on Powerstroke, Caterpillar, Navistar, MaxxForce, GM/Chevy, Cummins, John Deere or Isuzu HPCR systems and need a reliable way to clear carbon and debris from injector bores and cup seats without damaging mating surfaces, this compact two-piece kit is purpose-built for those tasks. Backed by a 30-day return policy and a 12-month warranty, it suits busy shops and field service technicians who require durable cleaning tools that save time and reduce rework.

Features:

• Great Compatibility — Works with Ford Powerstroke, Caterpillar, Navistar, MaxxForce and other diesel platforms.
• Superior Quality — Wear-resistant stainless steel bristles with ABS handles for durability and control.
• Upgrade Design — Removes carbon, rust and debris without enlarging injector bores.
• Special Features — Includes one spiral tube brush and one flat-bottom brush for complete bore and seat cleaning.
• 100% Satisfaction Guarantee — 30-day return and 12-month warranty for secure purchase.