Overview
Hugger Orange is the finish on the Baer Brakes S4 front brake system, part number 4301438HO. It is a front disc brake kit for GM G-Body cars, S10 and S15 2WD pickups, and the Blazer and Jimmy models built on the same platforms.
Baer’s S4 caliper is a four-piston unit that clamps an 11 inch slotted, drilled rotor made in two pieces, with zinc plating on the rotor surface. The billet hubs come with premium bearings greased with Redline synthetic and are already mounted on stock height spindles, so the front end is ready to bolt in.
Key features
- Four-piston S4 caliper assembled in Phoenix, Az
- Hugger Orange powder coat applied over the caliper body
- Hard anodized aluminum pistons paired with stainless steel abutments
- Noise suppression clips included
- Dual seals for dust, weather and pressure
- Two-piece slotted, drilled, zinc plated rotor
- Rotors pre-assembled with NAS high grade stainless hardware
- Billet hubs with premium bearings, billet dust caps and stock height spindles
Finish care and corrosion
Powder coat finishes protect the caliper body from road salt and stone chips, but a chip exposes the metal beneath. Wash the calipers with mild soap and water instead of harsh solvents, and avoid high-pressure washing directly at the seals. Touch up chips promptly with a finish suited to the coating.
Brake dust builds up on the caliper and rotor faces and can hide early warning signs. A quick look during tire rotations shows pad thickness, rotor scoring and any fluid leaking around the pistons. Keep the hub area clean so heat does not bake grime onto the friction surfaces.
- Check the caliper body for chips after winter driving
- Wipe pad dust off the rotor between services
- Look for fluid seepage at the bleeder screw
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301438HO |
| UPC | 90127920411 |
| Caliper | S4, 4-piston fixed |
| Caliper color | Hugger Orange |
| Rotor type | 2-piece slotted, drilled, zinc plated |
| Rotor construction | Vented |
| Rotor outside diameter | 11.0 inch |
| Rotor thickness | 1.02 |
| Brake pad type | DR1 or HB100 (FMSI DR1) |
| Brake hose | Steel braided, DOT approved |
| Axle | Front |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×4.75 |
| Wheel stud size | M12-1.50 x 51.5mm |
| Minimum wheel diameter | 15.0 inch |
| Spindles included | Yes, stock height |
| Template | S125A |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
Pontiac Grand Prix (1978–1988), Oldsmobile Cutlass Supreme (1978–1988), Oldsmobile Cutlass (1978–1981 and 1985–1988), Buick Regal (1978–1988), Chevrolet Monte Carlo (1978–1988), Chevrolet El Camino (1978–1987), Chevrolet Malibu (1978–1983), Chevrolet S10 (1982–2003), Chevrolet S10 Blazer (1983–1994), GMC S15 (1982–1990) and GMC S15 Jimmy (1983–1991) models are covered.
Full-size C/K pickups are not on the list, and the S10 Blazer and S15 Jimmy entries stop at 1994 and 1991. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
No spindle change is needed because the hubs are already on stock height spindles. Check the front wheels against the S125A template before mounting, since the minimum wheel diameter listed is 15.0 inch. Like every brake job, the lines and fasteners must be torqued and bled properly, so a qualified shop should confirm pedal feel before driving.
What’s included
Included: S4 calipers, 11 inch 2-piece rotors with stainless hardware, billet hubs with bearings and dust caps, stock height spindles, mounting brackets, stainless braided hoses and fasteners.
