NGK Iridium Spark Plug (SILKGR9A7EG) 91731 Box of 4
NGK Iridium Spark Plug (SILKGR9A7EG) 91731
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Low stock: 7 left
Shipping & returns
Shipping details
In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
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Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
Read the full return policyReturn details & how to start
Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.
Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.
Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.
After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.
Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.
For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
Specifications
Product details shared across all variants.
- Product type
- Spark Plug
- Category
- Spark Plugs
- Shipping dimensions (L × W × H)
- Shipping weight
- 0.5 lb
- Barcode
- 00087295817315
Billable shipping weight; may include dimensional weight.
Choose Single (1 plug) or Box of 4. Price and stock apply to the selected pack size.
NGK Iridium
High Ignitability Spark Plug
2014-13 Mercedes-Benz C300, 2014-12 Mercedes-Benz C350, 2015 Mercedes-Benz C400, 2020-17 Mercedes-Benz C43 AMG, 2016 Mercedes-Benz C450 AMG, 2020-14 Mercedes-Benz CLA45 AMG, 2017-15 Mercedes-Benz CLS400, 2016-14 Mercedes-Benz E300, 2016-12 Mercedes-Benz E350, 2018-14 Mercedes-Benz E400, 2018-17 Mercedes-Benz E43 AMG, 2020-19 Mercedes-Benz E450, 2016-15 Mercedes-Benz GL450, 2019-15 Mercedes-Benz GLA45 AMG, 2020-17 Mercedes-Benz GLC43 AMG, 2018-16 Mercedes-Benz GLE350, 2019-16 Mercedes-Benz GLE400, 2019-17 Mercedes-Benz GLE43 AMG, 2016 Mercedes-Benz GLE450 AMG, 2018-16 Mercedes-Benz GLE550e, 2019-17 Mercedes-Benz GLS450, 2015-12 Mercedes-Benz ML350, 2015 Mercedes-Benz ML400, 2020-18 Mercedes-Benz S450, 2017-15 Mercedes-Benz S550e, 2020-19 Mercedes-Benz S560e, 2016-15 Mercedes-Benz SL400, 2020-17 Mercedes-Benz SL450, 2020-17 Mercedes-Benz SLC43 AMG
NGK Spark Plugs, Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. With over 80 years of automotive expertise NGK has built a reputation for quality and reliability; manufacturing spark plugs for virtually every automotive, motorcycle, marine and small engine application. We are committed to be the premier partner with our customers, while maintaining original equipment standards for the highest durability and operational performance. With state-of-the-art manufacturing, inventory and distribution facilities in North America and across the globe, NGK is dedicated to providing customers with world-class products and services.
NGK Laser Iridium High Ignitability spark plugs offer the most advanced OE spark plug tip technology providing the optimal combination of performance and durability. Actual OE or equivalent replacement spark plugs.
