ProMAXX GM 6.6L Duramax Diesel Broken Exhaust Manifold Bolt Repair (PMXT300MSTR)
The ProMAXX GM 6.6L Duramax Diesel Exhaust Manifold Broken Bolt Repair Kit (PMXT300MSTR) is designed to provide a fast and reliable solution for repairing broken exhaust manifold bolts without removing the cylinder head. Compatible with Duramax Diesel models from 2004 to current, this extractor-less kit ensures precision, efficiency, and professional results. By using screw-in bushings, precise jig alignment, and machine-shop-grade drill bits, technicians can repair each bolt in approximately 15 minutes, saving time and boosting productivity.
Extractor-less design for consistent, accurate repairs.
Screw-in bushings and precise mating angles for perfect alignment.
Flexible mounting positions with included precision fasteners.
Machine-shop-grade drill bits with a 135° cutting angle for durability.
Saves time: Complete repairs in about 15 minutes per bolt.
Increases ROI: Streamlines workflow and enhances productivity.
Ensures accuracy: Achieve professional-grade precision with every repair.
Durable tooling: Designed to withstand tough materials and curved surfaces.
Technical Specifications:
Master Kit: Includes 8mm & 10mm components (2004–current models).
ProKit (8mm): Compatible with GM Duramax L5 Diesel V8 (2016–current).
ProKit (10mm): Compatible with GM Duramax L5 Diesel V8 (2004–2016).
Drill bits: 135° cutting angle, made in the USA for alloy and stainless steel.
ProPlate jig for cylinder head alignment.
Screw-in ProBushings for secure positioning.
ProDrill machine-shop-grade drill bits.
Thread repair components: Tap and threaded inserts.
Product identification
- Brand: ProMAXX
- Model / MPN: PMXT300MSTR




