Equivalents for the Mercury spark plug 803991
Mercury 803991, a spark plug featuring tightening torque fonte 10–20 N·m · alu 10–20 N·m — ou 180°–240° (½–⅔ tour), heat range hot, reach 11.2 mm, thread 14 mm. All its 562 replacement references: compatible and interchangeable equivalents — NGK, Bosch, Champion, Denso…
Technical information Mercury 803991 spark plug
- Resistor
- no
- Torque
- fonte 10–20 N·m · alu 10–20 N·m — ou 180°–240° (½–⅔ tour)
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562 equivalents compatible with the Mercury 803991 spark plug
- A
- A
- K
- K
- K
- K
- M
- A
- A
- M
- N
- N
- N
- L
- N
- M
- M
- M
- M
- N
- I
- L
- B
- E
- L
- M
- M
- P
- N
- L
- N
- N
- M
- B
- I
- L
- B
- E
- U
- M
- P
- P
- N
- M
- M
- B
- U
- H
- H
- H
- N
- N
- E
- H
- P
- N
- H
- H
- M
- A
- A
- A
- A
- A
- A
- A
- A
- A
- A
- A
- V
- V
- V
- V
- V
- V
- D
- B
- V
- V
- V
- V
- B
- M
- M
- M
- M
- M
- M
- M
- M
- G
- G
- B
- B
- M
- M
- Y
- M
- Y
- L
- L
- L
- L
- M
- M
No equivalent for this brand selection.
What can replace a Mercury 803991 spark plug?
The Mercury 803991 is interchangeable with: NGK BP6FS, Bosch H4B, Champion V4C, NGK BP7FS, NGK BPR6FS, NGK UR5. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Mercury 803991?
Thread 14 mm, Reach 11.2 mm, Heat range Hot, Resistor no, Seat Tapered, Torque fonte 10–20 N·m · alu 10–20 N·m — ou 180°–240° (½–⅔ tour)
Cross-references and specifications are provided for guidance only. The wrench size can vary by brand, and some data is inferred from the plug code or an equivalent reference. Always check the vehicle manufacturer's recommendation before buying and fitting.