Champion 129 spark plug for the 1958-1959 Ford F-250 V8 5.8L, the 1960-1963 F-250 V8 5.4L, the 1962-1964 F-250 6-cylinder 4.3L, the 1964-1966 F-250 V8 5.9L, the 1965-1967 F-250 V8 5.8L, the 1965-1974 F-250 6-cylinder 4.9L, the 1967-1974 F-250 6-cylinder 3.9L and other vehicles fires the air-fuel mixture in each cylinder to start combustion.
- Champion Copper Plus line with copper-core ignition technology
- Copper core center electrode for accurate heat range control and long life
- Coated shell for corrosion resistance in harsh environments
- Built-in resistor that minimizes electrical interference to protect sensitive electronics
- Engineered for reliable ignition in all weather conditions
Quick facts
- Part: Champion 129 spark plug
- Fits: the 1958-1959 Ford F-250 V8 5.8L, the 1960-1963 F-250 V8 5.4L, the 1962-1964 F-250 6-cylinder 4.3L, the 1964-1966 F-250 V8 5.9L, the 1965-1967 F-250 V8 5.8L, the 1965-1974 F-250 6-cylinder 4.9L, the 1967-1974 F-250 6-cylinder 3.9L and other vehicles
- Condition: New
Worn plugs can show up as hard starting, a rough idle or a misfire. Those signs alone do not prove the plug is the problem, because a weak ignition coil can produce the same symptoms.
Fits
Besides the Ford trucks above, it fits the 1994 Dodge Ram 3500 V8 5.9L, which takes eight plugs, and the 1987-1991 Dodge D250 V8 5.9L. It is built to meet OE fit, form and function. Open the "Vehicles it fits" section to check your exact model and engine against the many other applications.
Specifications
Fit and size
- Thread diameter: 18 mm (0.709 in)
- Seat type: Tapered
- Pre-gap: 0.030 in (0.78 mm)
- Plug type: RF10C
- Quantity per vehicle: 6 on the 6-cylinder engines, 8 on the V8 engines
Build and materials
- Product line: Champion Copper Plus
- Grade: Standard replacement
- Center electrode tip material: Copper
- Resistor: Yes
- Condition: New
- Country of origin: Mexico
In the box
The spark plug only; a washer is not included.
Installation notes
- The pre-gapped design simplifies installation.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Does the Champion 129 spark plug fit a 1994 Dodge Ram 3500 with the V8 5.9L?
Yes, Champion 129 fits the 1994 Dodge Ram 3500 V8 5.9L, which takes eight plugs. For other models and engines, check the "Vehicles it fits" section.
Does the Champion 129 spark plug come with a washer?
No, a washer is not included with Champion 129. This plug has a tapered seat.
What thread diameter does the Champion Copper Plus RF10C spark plug have?
This spark plug has an 18 mm (0.709 in) thread diameter and a tapered seat.
Is this Champion copper spark plug a resistor type?
Yes, this plug has a built-in resistor that minimizes electrical interference to help protect sensitive electronics.
Do I need to set the gap on this pre-gapped Champion plug?
The plug comes pre-gapped at 0.030 in (0.78 mm), a design that simplifies installation.
