Description
Complete battery cable harness for 2.0 16V engines. It is from a Peugeot 307 2.0 16V RFJ.
Product Overview
This complete battery cable assembly is designed for the 2.0 16V RFJ engine found in the Peugeot 307. It includes the main positive battery cable and associated wiring looms that connect the battery to starter, alternator, body grounding points and fuse/relay junctions. Ideal for workshops and experienced DIYers who need a direct replacement harness removed from a donor vehicle. Common search terms include battery cable, battery harness, Peugeot 307 2.0 16V cable, and the OE numbers 9655329880, 9661639980, 5642GF.
Why Fit This Part
Replacing a worn or damaged battery harness restores reliable cranking, charging and electrical grounding. A factory-style harness ensures correct routing and connector types, reduces the risk of poor connections, and speeds up installation compared with fabricating new cables. This is particularly useful after battery terminal corrosion, engine bay repairs or following an accident where cable routing or connectors were damaged.
How The Part Is Replaced
Replacement requires basic electrical skills and common workshop tools. Typical procedure:
- Disconnect and isolate the battery (negative terminal first).
- Document or photograph original cable routing and connector positions.
- Remove clamps, retainers and fasteners securing the old harness; detach connectors from starter, alternator, grounding points and fuse/relay box.
- Fit the replacement harness, following original routing to avoid heat or moving parts contact; secure with original clips and new ties where required.
- Reconnect battery (positive last) and check charging system, starter operation and all related circuits for correct function.
Installation Recommendation
Always disconnect the battery before starting work. Label connectors and take reference photos to ensure correct reassembly. Inspect and clean battery terminals, grounding points and mating connectors; replace corroded terminals or damaged heat-shrink boots. Use appropriate sized crimp or soldered joints if any additional repairs are needed and protect connections with dielectric grease and proper insulation. After installation, verify charging voltage at the battery with the engine running and check for voltage drops under cranking.
Why The Part Most Commonly Fails
Battery harnesses typically fail due to corrosion at terminals and connector pins, mechanical wear from vibration and chafing, heat damage from proximity to exhaust components, or previous poor repairs and shorts. Water ingress, especially where seals or boots have degraded, accelerates connector corrosion. Symptoms include poor cranking, intermittent electrical faults, dimming lights and charging irregularities.
Technical Information
Manufacturer: Stellantis (Peugeot/Citroën)
Model: Peugeot 307 2.0 16V (RFJ)
Product Codes: 9655329880, 9661639980, 5642GF
Additional Numbers: NFP
Compatibility And Notes
This harness is stated as removed from a Peugeot 307 2.0 16V RFJ. It is intended for vehicles equipped with the same 2.0 16V RFJ engine and corresponding electrical layout. Many customers search by OE codes 9655329880, 9661639980 or 5642GF, so include these numbers when looking up fitment. As with any used wiring assembly, inspect connectors and insulation carefully before installation and replace any worn fasteners or clips to restore secure routing.
Practical Tips For Mechanics
- Keep replacement cable lengths and terminal types identical to original to avoid electrical resistance issues.
- Replace corroded bolts and nuts at grounding points to ensure a solid return path.
- Secure the harness away from moving components and hot surfaces with new clips or cable ties.
- Test starter current draw and charging system after fitment to confirm fault resolution.
