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We are a specialized diesel repair shop built around reliability, safety, and real-world performance. Our focus is on heavy-duty brake systems designed for towing and loaded trucks, precision engine service including oil changes, fuel, air, and CCV filtration, and front-end and steering repairs using proven components such as RedHead steering gears. We don’t cut corners or install low-grade parts— every repair is performed with quality components chosen to withstand heavy loads, long pulls, and real mileage. Whether you’re hauling a toy hauler, camper, or work trailer, our goal is to keep your truck tracking straight, stopping hard, and staying on the road.

Our fleet maintenance program is built to maximize uptime and control operating costs. Proactive service reduces breakdowns, limits downtime, and extends vehicle life—saving money where it matters most. Backed by real-world, hands-on experience, we service fleets with practical knowledge, not guesswork, so your trucks stay working and on the road, not sitting in the shop.

We specialize in diesel engine repair and performance upgrades using proven components and real-world diesel knowledge. Our services include Banks performance upgrades, ARP fasteners and hardware, advanced diesel fuel system diagnostics and upgrades, Hamilton camshaft and valvetrain improvements, turbocharger repair and replacement, fuel injector service, proper filtration systems, and complete emissions system repair and maintenance. Every upgrade or repair is performed with reliability, longevity, and drivability in mind—not shortcuts. This level of service is specifically tailored to Power Stroke, Duramax, and Cummins engines, ensuring your truck performs correctly under load, towing, and daily use.

We offer specialized diesel fuel system upgrades focused on reliability, performance, and long-term engine protection. Our services include S&S; Diesel fuel system upgrades such as DCR and CP3 conversions for 6.7 Power Stroke, Duramax, and 6.7 Cummins engines, along with CP4 disaster prevention kits for Ford 6.7 Power Strokes. We also install FASS fuel filtration and lift pump systems to ensure proper fuel supply, clean filtration, and consistent pressure under load. These upgrades are designed to eliminate known fuel system weaknesses, protect high-dollar components, and keep your truck dependable for towing, working, and daily driving.

 

  • PRE PURCHASE INSPECTIONS

  • ​TRANSMISSION REPAIR & SERVICE​

  • FRONT TO REAR END SERVICE

  • ​ENGINE OIL & FUEL FILTERS 

  • ​CUMMINS BANKS MONSTER-RAM

  • S&S AND FASS FUEL SYSTEMS 

  • ​OVERSIZED FUEL TANKS & FUEL SYSYTEMS

  • UTILITY BED INSTILLATION

  • FUEL INJECTORS AND CUPS

  • TURBOCHARGER UPRADES 

  • REDHEAD STEERING GEARS

  • FRONT STEERING & SUSPENSION

  • ​​PERFORMANCE MODIFICATION'S

  • ​DOWNPIPES & EXHAUST

  • ​SYSTEMSAIR BAGS & LIFT KITS

  • SUSPENSION KITS

  • ​AND MUCH MORE...

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OPENING HOURS

Mon - Fri: 9am - 5pm

LOCATION

Maple Valley, WA 98038

© 2022 by Northwest Power & Performance

© 2022 by Northwest Power & Performance

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