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PA801073ASA GBK Automatic Slack Adjuster, 5½” Arm, 28-Spline, 1½” Dia., Replaces Meritor R801073
Automatic Slack Adjuster — Arm Length 5½”, 28 Splines, Diameter 1½”. Replaces Meritor R801073, Euclid E-11401, Gunite AS1140, Bendix 065174, Sirco SA2174. Clevis included. 1-year warranty — 6 pcs/ctn
In Stock: 54
Wholesale over $1,500 to NJ & NY
- Secure checkout VISAAMEXDISCOVER PayG Pay
- Defective-on-arrival parts replaced free — return policy
- Cross-reference checked against OEM & aftermarket part numbers
- Fits: 5½" arm length, 28-spline camshaft, 1½" spline diameter, for S-cam air drum brakes on trucks and trailers.
- Automatic, stroke-sensing adjustment: adjusts on brake chamber stroke to hold the correct lining-to-drum clearance as linings wear.
- Clevis included: ships with the adjustable clevis, clevis pins and retaining clips, ready to connect to the chamber push rod.
- Serviceable: grease fitting for lubrication and a hex adjusting nut for setting initial clearance or backing off the brake.
- Sealed: rubber boot protects the adjusting mechanism from road dirt and water.
- Warranty: 1 year.
- Packing: each adjuster in its own 10" × 3" × 4" box, approx. 8 lbs; 6 pcs per carton.
Replaces:
- Meritor: R801073
- Euclid: E-11401
- Gunite: AS1140
- Bendix: 065174, K043197
- Sirco: SA2174
- Haldex / Midland: CS56040
- Automann: 139.2831
- Dayton: 05-463
- Stemco / Crewson: MK42100S
- Volvo: 1090261
Always confirm arm length, spline count and spline diameter against the part you are replacing.
Product Specifications
| Product Type | Automatic Slack Adjuster |
|---|---|
| Length | 5.5" Arm |
| Thread Pitch / Splines | 28 Splines |
| Spline Diameter | 1.5" |
| Vehicle Type | Semi Truck / Heavy Duty |
| Weight | 8 lbs |
Packaging & Delivery
Every GBK Parts order is packed with care. Pallet orders are tightly shrink-wrapped and strapped for safe freight transit. Select products also come in individual branded GBK USA retail boxes — ready for resale or direct customer delivery.
About GBK Parts
GBK Parts is a U.S.-based wholesale and retail distributor of heavy-duty commercial truck parts, headquartered in New Jersey. We specialize in brake components, axle parts, and drivetrain hardware for Class 6–8 trucks, trailers, and commercial vehicles.
We source directly from certified OEM-grade manufacturers and maintain a large inventory in our New Jersey warehouse, enabling fast fulfillment for both retail and wholesale customers across the United States.
Why Choose GBK Parts?
- Direct Wholesale Pricing — Competitive pricing with volume discounts for approved B2B accounts.
- OEM-Grade Quality — All parts meet or exceed OEM specifications. Brake components are FMSI-coded and tested to FMVSS standards.
- Fast Shipping — Same-day or next-day shipping on in-stock items. Free standard shipping on retail orders over $100, nationwide.
- Catalog-Based Production — Extensive product catalog covering a wide range of heavy-duty truck and trailer parts, available to order.
- NET 15 Terms — Approved wholesale accounts are eligible for NET 15 payment terms.
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