Pack of 10 Genuine Eyquem T 850 Spark Plugs NGK C7HSA Equivalent
Pack of 10 Genuine Eyquem T 850 Spark Plugs NGK C7HSA Equivalent
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Product Overview
Bulk 10-pack of original vintage Eyquem T 850 small-thread (M10) short-reach spark plugs. Manufactured in France as direct OEM equipment, this plug features a 10mm thread diameter, 12.7mm thread reach, and 16mm hex size. It serves as the exact cross-reference for the NGK C7HSA / C6HSA, Denso U22FS-U, and Honda OEM 98056-57717, making it essential ignition stock for classic horizontal 4-stroke mini-bikes, Japanese & European scooters, and 50cc–125cc utility engines.
Vehicle Compatibility
Standard Genuine short-reach fitment for 4-stroke and select small 2-stroke platforms requiring M10 × 1.00 spark plugs (NGK C7HSA / C6HSA / Honda 98056-57717 spec):
| Make | Model | Engine / Chassis Variant | Model Years |
| Honda | Z50 / Z50A / Z50J Monkey / Gorilla / Baja | 50cc Horizontal 4T (Z50E) | 1968–2017 |
| Honda | ST50 / ST70 / Dax 50 / Dax 70 | 50cc / 70cc Horizontal 4T (ST50E / ST70E) | 1969–1998 |
| Honda | CF50 / CF70 Chaly | 50cc / 70cc Horizontal 4T | 1972–1998 |
| Honda | ZB50 / CY50 Naughty Dax | 50cc Horizontal 4T (AB22) | 1988 |
| Honda | C50 / C70 / C90 Super Cub / Passport | 50cc / 70cc / 90cc Horizontal 4T | 1966–2008 |
| Honda | SS50 / CL50 / SL70 / XL70 | 50cc / 70cc 4-Stroke Manual | 1967–1976 |
| Honda | ATC70 / ATC90 / ATC110 / TRX70 | 70cc / 90cc / 110cc 3-Wheeler & ATV | 1973–1987 |
| Yamaha | T50 / T80 TownMate | 50cc / 80cc 4-Stroke Shaft-Drive | 1983–1995 |
| Suzuki | FA50 Shuttle / FS50 / FZ50 / Birdie 50 | 50cc 2T & 4T Moped Series | 1978–1998 |
| Kawasaki | KV75 / MT1 A1 | 75cc 2T / 4T Mini-Bike | 1971–1980 |
| SYM / KYMCO | Symba 100 / Filly 50 / Agility 50 4T | 50cc / 100cc 4-Stroke Scooter | 2000–2018 |
| Pit Bikes (Universal) | Horizontal 4-Stroke (Lifan / YX / Zongshen / Loncin) | 50cc / 70cc / 90cc / 110cc / 125cc Pit Bikes | All Years |
Fitment & Technical Details
Thread directly into the cylinder head by hand to avoid cross-threading the fine M10 pitch. Tighten with a standard 16.0mm (5/8") spark plug socket to 10–12 Nm torque on a new gasket seat. Factory electrode gap set to 0.6mm–0.7mm.
Important: Please ensure the part number matches your motorbike before purchasing. If you have any questions about the part or its compatibility, feel free to contact us. We’re here to help!
At Dmmotorcycles, we’ve specialized in vintage and vintage sports motorcycles and parts directly from Japan since 1998. We stock a wide selection of rare genuine and high-quality aftermarket parts and continually update our inventory to meet growing demand.
Looking for a specific part? Don’t hesitate to ask! We may have it in stock even if it’s not listed online. If not, we’ll do our best to source it for you.
We’re also happy to provide guidance on installation and offer excellent after-sales support to ensure your satisfaction.
Shipping Information
We ship worldwide, carefully inspecting and securely packing all parts to ensure safe delivery. Your order will be insured and shipped quickly, with the best available shipping option chosen for speed and reliability.
Please note:
- All parts are shipped from Cyprus (Europe).
- Customers outside the EU may incur additional import taxes based on the value of the item.
How we handle your order in 4 steps
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1. Order Verification
We confirm the order and make sure the correct part number, quantity, and any special requests match what’s on the sales confirmation
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2. Quality Check
Since our parts are new old stock we Inspect the parts for any defects, scratches, or missing components to ensure it meets quality standards. otherwise will notify you before proceeding with the order.
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3. Safe and Secure packaging
- Protective Wrapping: We use bubble wrap or foam padding to wrap the part, focusing on sharp edges or delicate components.
- Boxing: We place the wrapped part inside a sturdy box, filling gaps with packing materials to prevent movement.
- Sealing and Labeling: Securely tape the box and attach the shipping label, including orientation-specific markers like "Fragile."
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4. Finalizing of Shipment
We confirm the shipping address and contact details, give the package to the Post, keep the tracking number, and then send it to the customer along with the shipment notification.
