
Product information
Overview
Product Overview
The NGK BPR5ES is a standard resistor spark plug identified by NGK stock number 7734. Its projected insulator and gasket-seat design must be matched to the engine manufacturer's specified plug before installation.
Verified Specifications
- NGK part number: BPR5ES
- NGK stock number: 7734
- Thread diameter: 14 mm
- Hex size: 20.8 mm (13/16 in.)
- Reach: 19.0 mm (3/4 in.)
- Design: Projected insulator, resistor, gasket seat, loose terminal
- Heat range: NGK 5
- Package: One spark plug
Fitment and Installation
This is a specification-bound replacement part, not a blanket vehicle-fitment claim. Install only where the vehicle or engine application specifies NGK BPR5ES / stock 7734 and verify thread, reach, seat, heat range, terminal and electrode gap before use.
Purchase Notes
Do not substitute another NGK heat range or reach solely because the plug appears similar.
Fitment
Specifications
- NGK part number
- BPR5ES
- NGK stock number
- 7734
- Thread diameter
- 14 mm
- Hex size
- 20.8 mm (13/16 in.)
- Reach
- 19.0 mm (3/4 in.)
- Design
- Projected insulator, resistor, gasket seat, loose terminal
- Heat range
- NGK 5
- Package
- One spark plug
- Color
- NOT_APPLICABLE - functional spark plug component; color is not a selection axis
- Finish
- NOT_APPLICABLE - functional spark plug component; no finish variant is asserted
- Material
- NOT_APPLICABLE - multi-material spark plug assembly; no single product-level material
Shipping & support
Shipping
Taiwan orders are prepared after payment and inventory confirmation. Shipping fees and any free-shipping threshold are shown at checkout.
View shipping policyReturns
Request a return within 14 days after receiving the item. Wait for return approval and shipping instructions before sending anything back.
View returns and warrantyFAQ
Before ordering, compare the SKU, OEM number, brand part number, model year, fitment notes, and product images.
View FAQsFitment help
If fitment is uncertain, send the SKU or OEM number together with the motorcycle year and model before checkout.
Contact fitment support