PINTLE CAPS / DUST BOOTS / MANIFOLD SEALS

This is why you should replace:  Fuel Injector Grommets, Insulators, Pintle Caps

Everything besides the filter basket and main O-rings that goes into a complete injector rebuild — grommets, heat insulators, pintle caps, spacers, and retaining clips. These small parts get overlooked but skipping them means an incomplete repair

A full fuel injector rebuild is more than swapping the filter basket and O-rings. This category covers the rest of the small components that seal, cushion, and protect the injector: grommets and spacers that position the injector correctly in the fuel rail or manifold, heat insulators (also called injector cups or heat shields) that isolate the injector from engine heat and prevent vapor lock or premature O-ring failure, and pintle caps that cover and protect the injector's pintle/nozzle tip, shaping the fuel spray pattern and shielding it from carbon buildup.

Skipping these parts during a rebuild is one of the most common reasons an injector fails again shortly after service — a missing or worn insulator lets heat degrade a brand-new O-ring, and a cracked or missing pintle cap disrupts spray pattern and lets deposits build up on the nozzle. PROCHARGE INJECTORS stocks these components individually so you can complete a rebuild correctly the first time, whether you're replacing one worn part or doing a full teardown.

What's included / why it matters:

• Grommets & spacers — correctly position and cushion the injector in the rail/manifold
• Heat insulators — shield the injector body from engine heat, protecting seals from premature failure
• Pintle caps — protect the nozzle tip and maintain proper spray pattern
• Clips & retaining hardware — secure the injector and prevent movement/vibration wear
• Sold individually so you only replace what's actually worn

Compatibility note: These parts are injector- and application-specific — match by your injector's OEM part number or bring the worn original for a side-by-side comparison before ordering.