Rear Wheel Bolt 81.45501.0083 35CrMo 12.9 SHACMAN Delong

Rear wheel bolt 81.45501.0083 secures the wheel and brake drum to the rear hub on SHACMAN Delong trucks and Mercedes-Benz technology axles. Wheel bolts work under the harshest cyclic loads on the truck; a stretched or fatigue-cracked bolt can let the wheel work loose, so any bolt with stretched thread, rounded head or visible crack must be replaced immediately and never reused after a wheel-off event.

This bolt is made of 35CrMo alloy steel quenched and tempered to grade 12.9, with the grade and material cast directly on the bolt head (35CrMo / 12.9). The knurled body presses into the hub with an interference fit, the rolled M22 x 1.5 thread carries the wheel nut, and the integrated flange distributes clamping load without a separate washer.

Key Features
– Part number: 81.45501.0083
– Alternative number: H150A22125BZF3
– Application: SHACMAN Delong / Mercedes-Benz technology rear axle, rear wheels
– Material: 35CrMo alloy steel, grade 12.9 (cast marking on head)
– Construction: knurled press-fit body, rolled fine-pitch thread, integrated flange

Replacement advice
– Replace bolts whenever the thread shows stretch, galling or corrosion pitting
– Always replace after a wheel has run loose
– Torque to the vehicle manual specification in a star pattern and re-check after the first 50-100 km

Ordering information
Genuine and OEM quality available. Bulk orders welcome. Send us the number from your old bolt or your truck VIN, and we will confirm compatibility before quotation.

Specifications