HOWO Camshaft & Crankshaft Position Sensors — Complete Guide

Sinotruk HOWO trucks exported worldwide share a common pain point: generic sensor listings that never explain which Bosch number sits on which engine revision. Workshop managers know the truck — HOWO 336, 371, or A7 tipper — but the ECU only cares about two pulses: cam phase and crank speed.

On Weichai-powered platforms, Bosch 0281002667 (camshaft) and Bosch 0281002315 (crankshaft) form the standard pairing referenced across Chinese aftermarket catalogues. This guide connects machine intent (HOWO breakdown) to part-number pages (RFQ-ready).

African fleet operators often maintain mixed Sinotruk stock across sites. Consolidating sensor orders through one export supplier reduces duplicate freight and documentation errors — commercial invoice, packing list, COO, and harmonised HS classification for engine sensors.

Without dealer scan tools, use observable checks: Does tachometer show RPM while cranking? If zero — suspect crank sensor circuit first. If RPM shows but extended cranking — investigate cam sensor and fuel system. Always inspect connector moisture and harness chafe at frame mounts — common on rough-terrain HOWO routes.

Upload photos of both sensor connectors and engine plate via WhatsApp before ordering. We map to 0281002667 / 0281002315 or advise alternate if your plate shows different Bosch numbering.

Weichai WD615 series engines powered a large share of early HOWO exports — cam and crank sensors sit on different revisions of timing cover and bell-housing respectively. Newer WP10 / WP12 platforms retain Bosch numbering for many sensor lines but connector routing may differ. Never assume from truck badge alone — the engine data plate is the authority.

Maintenance contractors servicing HOWO fleets in Nigeria and Ghana report higher failure rates during rainy season — connector moisture and mud ingress at the crank sensor harness are frequent root causes before the sensor element itself fails. Cleaning and dielectric grease on the connector may recover signal without replacement; if codes return, order verified 0281002315 with photo match.

For cam sensor 0281002667, heat soak after long idle in traffic (port drayage, urban logistics) can produce hard-start complaints that disappear after cooldown — classic intermittent cam circuit behaviour. Log fault codes where possible; replace with warehouse-verified unit when pattern repeats.

Request cam + crank pair on one proforma when overhauling timing cover or clutch/flywheel assembly — labour is already sunk. Pioneer Mitra consolidates 0281002667 and 0281002315 on single export invoice for African mine-site stores. Minimum documentation: company name, destination port, qty per part number, and WhatsApp photos of both old units.