
V-Twin 49-0878 18mm Doering Spark Plug Set
- Free tracked delivery on orders over $99
- Orders typically arrive within 7 to 14 business days
- Consumer Guarantees Act cover. Faulty, damaged or not as described? We repair, replace or refund, and return shipping is on us.
- Not sure it fits your bike? Email us your make, model and year and we'll check before you buy — free, usually within one business day.
Product details
The wrong part stalls the whole job. Check the details below against your bike before you order: if a spec isn't listed, we don't have it on record, and we'd rather you ask than guess.
V-Twin Manufacturing spark plug. Made from brass. Cross-check part number 49-0878 against the one you're replacing.
| Part type | Spark Plug |
|---|---|
| Material | brass |
| Part number | 49-0878 |
| Condition | new |
- Large hex original design for air cooled engines, #3 heat range terminal nuts and seal washers included
- Includes top ventilated brass collars for cooling, as original, Doering design!
- Terminal nut is not removable
- Plug set has a round feeler gauge
- Spark plugs have a 18mm thread and the large hex measures 1-3/8", which is perfect for early restoration and riding
- Set is for use with 1924 Harley models that require 7/8" thread spark plug. *NOTE: Sold as a pair. *NOTE: Fits early Knuckleheads, that can accept the 1-3/8" large hex. *NOTE: Air cooled spark plug set
- a nickel plated full size hex
- Full size hex is for single and twin flat heads, For IOE types, with space for the large hex
Not sure it fits? Send us your make, model and year before you order and we'll check this part against your bike. Endo Supply is Kiwi-owned and orders are processed and fulfilled from New Zealand. If a part ever arrives faulty or not as described, a real person sorts it, backed by your Consumer Guarantees Act rights and our refund policy.