Product Description
This spark plug 3851857 comes directly from Volvo, they are NOT an after market or cross reference plug
They will arrive in a Volvo box as shown in the picture.
There are 4 plugs to a box
Spark plugs
The following tables provide spark plug gap, and installation torque:
Engine Model Gap Torque
3.0 GS 0.045 in. (1.14 mm) 20 ft. lb. (27 N•m)
4.3 GL/GXi 0.060 in. (1.52 mm) 20 ft. lb. (27 N•m)
5.0 GL 0.060 in. (1.52 mm) 20 ft. lb. (27 N•m)
5.0 GXi 0.060 in. (1.52 mm) 20 ft. lb. (27 N•m)
5.7 GL 0.060 in. (1.52 mm) 20 ft. lb. (27 N•m)
5.7 Gi 0.060 in. (1.52 mm) 20 ft. lb. (27 N•m)
5.7 GXi 0.060 in. (1.52 mm) 20 ft. lb. (27 N•m)
8.1 Gi 0.060 in. (1.52 mm) 22 ft. lb. (30 N•m)
8.1 GXi 0.060 in. (1.52 mm) 22 ft. lb. (30 N•m)
DPX375/420 0.060 in. (1.52 mm) 22 ft. lb. (30 N•m)
Engine Model P/N Firing order
3.0 GS 1–3–4–2
4.3 GL/GXi 1–6–5–4–3–2
5.0 GL 1–8–4–3–6–5–7–2
5.0 GXi 1–8–4–3–6–5–7–2
5.7 GL 1–8–4–3–6–5–7–2
5.7 Gi 1–8–4–3–6–5–7–2
5.7 GXi 1–8–4–3–6–5–7–2
8.1 Gi 1–8–7–2–6–5–4–3
8.1 GXi 1–8–7–2–6–5–4–3
DPX375/420 1–8–7–2–6–5–4–3
