Pioneer Cables

Pioneer Cables S-100 Engine Cylinder Head Bolt Set

Brand Pioneer Cables S-100
Fits Geo, Pontiac, and Chevrolet · 24 vehicles

Standard replacement grade. Engine fastener set for dependable service and straightforward replacement.

Trusted by builders. Used by engine builders and professional remanufacturers for decades.

$46.11Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $46.11
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Engine Cylinder Head Bolt Set for Geo Metro and Pontiac Firefly

Pioneer Cables S-100 is an engine cylinder head bolt set for select Geo Metro, Pontiac Firefly, and Chevrolet Sprint applications. It is built for engine rebuild and remanufacturing work where dependable fasteners are needed for cylinder head service.

Key Features

  • Engine cylinder head bolt set for select small-displacement engine applications
  • Fits 1989-1997 Geo Metro, N/A
  • Fits 1994 Pontiac Firefly, N/A
  • Fits 1985-1991 Pontiac Firefly, N/A
  • Fits 1985-1991 Chevrolet Sprint, N/A
  • Part number S-100 for catalog and service reference
  • From Pioneer Cables, a brand with a long-standing engine fastener program for rebuilders and remanufacturers

Detailed Description

Pioneer Cables S-100 is part of an engine fastener line that includes studs, bolts, nuts, and related hardware for standard replacement and higher-performance engine service. For technicians working on Geo Metro, Pontiac Firefly, or Chevrolet Sprint engines, this cylinder head bolt set supports cylinder head fastening during rebuild or repair procedures. The S-100 part number is also useful when matching service records or ordering by application.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

  • Loose or damaged cylinder head fasteners during engine teardown
  • Fastener replacement needs during head gasket service
  • Rebuild work on Geo Metro, Pontiac Firefly, and Chevrolet Sprint engines
  • Service part identification when ordering by S-100

Installation Notes and Tips

Verify engine code, cylinder head design, and service procedure before installation. Clean threaded holes thoroughly, inspect mating surfaces, and follow the manufacturer’s tightening sequence and torque specifications for the engine being serviced. Replace any fastener that shows stretching, corrosion, or thread damage.

Quality Assurance

Pioneer Automotive Industries has supplied engine fasteners to engine builders and professional remanufacturers for decades, with a program focused on replacement and performance-grade hardware.

This part fits 24 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1997GeoMetro1.0LL3N/AKit - Contains (8 PG-417)
1996GeoMetro1.0LL3N/AKit - Contains (8 PG-417)
1995GeoMetro1.0LL3N/AKit - Contains (8 PG-417)
1994GeoMetro1.0LL3N/AKit - Contains (8 PG-417)
1994PontiacFirefly1.0LL3N/AKit - Contains (8 PG-417)
1993GeoMetro1.0LL3N/AKit - Contains (8 PG-417)
1992GeoMetro1.0LL3N/AKit - Contains (8 PG-417)
1991ChevroletSprint1.0LL3N/AKit - Contains (8 PG-417)
1991GeoMetro1.0LL3N/AKit - Contains (8 PG-417)
1991PontiacFirefly1.0LL3N/AKit - Contains (8 PG-417)
1990ChevroletSprint1.0LL3N/AKit - Contains (8 PG-417)
1990GeoMetro1.0LL3N/AKit - Contains (8 PG-417)
1990PontiacFirefly1.0LL3N/AKit - Contains (8 PG-417)
1989ChevroletSprint1.0LL3N/AKit - Contains (8 PG-417)
1989GeoMetro1.0LL3N/AKit - Contains (8 PG-417)
1989PontiacFirefly1.0LL3N/AKit - Contains (8 PG-417)
1988ChevroletSprint1.0LL3N/AKit - Contains (8 PG-417)
1988PontiacFirefly1.0LL3N/AKit - Contains (8 PG-417)
1987ChevroletSprint1.0LL3N/AKit - Contains (8 PG-417)
1987PontiacFirefly1.0LL3N/AKit - Contains (8 PG-417)
1986ChevroletSprint1.0LL3N/AKit - Contains (8 PG-417)
1986PontiacFirefly1.0LL3N/AKit - Contains (8 PG-417)
1985ChevroletSprint1.0LL3N/AKit - Contains (8 PG-417)
1985PontiacFirefly1.0LL3N/AKit - Contains (8 PG-417)