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6 Pack NGK Iridium IX Spark Plugs 1972-1982 Maserati Merak 3.0L V6 Kit Set - Picture 1 of 1

Spark Plug-Iridium IX NGK 6637

4.899 product ratings

YES AUTO PARTS (103404)

97.7% positive feedback

Price:

$61.90

Free shipping

Estimated delivery Mon, Oct 6 - Fri, Oct 10

Returns:

60 days returns. Seller pays for return shipping.

Condition:

New

GENUINE NGK SPARK PLUGS . Plugs feature a fine-wire Iridium center electrode and Nickel-alloy ground electrodes for maximum engine horsepower and torque. 6 Spark Plugs. This kit contains We have more than 40 years of combined automotive experience.

About this product

Product Identifiers

BrandNGK

Manufacturer Part Number6637

eBay Product ID (ePID)76256428

Product Key Features

California Prop 65 WarningNickel

Additional Product Features

NotesDescription--Iridium IX Spark Plug

Sub TypeSpark Plug

Part TypeSecondary Ignition

All listings for this product

Iridium Spark Plug NGK 6637

item 1 Iridium Spark Plug NGK 6637

Spark Plug NGK 6637 (1 Spark Plug Only)

item 2 Spark Plug NGK 6637 (1 Spark Plug Only)

Genuine NGK 6637 BPR6EIX Iridium IX Spark Plug

item 3 Genuine NGK 6637 BPR6EIX Iridium IX Spark Plug

Spark Plug-Iridium IX NGK 6637

item 4 Spark Plug-Iridium IX NGK 6637

NGK SPARK PLUGS 6637 BPR6EIX Spark Plugs For Iridium IX version of BPR6ES

item 5 NGK SPARK PLUGS 6637 BPR6EIX Spark Plugs For Iridium IX version of BPR6ES

NGK Spark Plug 6637

item 6 NGK Spark Plug 6637

NGK SPARK PLUGS 6637 BPR6EIX Spark Plugs For Iridium IX version of BPR6ES

item 7 NGK SPARK PLUGS 6637 BPR6EIX Spark Plugs For Iridium IX version of BPR6ES

NGK 7223 Spark Plug #7223/04

item 8 NGK 7223 Spark Plug #7223/04

NGK 7223 Spark Plug #7223/04

item 9 NGK 7223 Spark Plug #7223/04

NGK SPARK PLUGS 6637 BPR6EIX Spark Plugs For Iridium IX version of BPR6ES

item 10 NGK SPARK PLUGS 6637 BPR6EIX Spark Plugs For Iridium IX version of BPR6ES

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item 11 Iridium Spark Plug NGK 6637

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item 12 Iridium Spark Plug NGK 6637 BPR6EIX for BMW R100, Yamaha XS1100

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item 13 NGK Iridium IX Spark Plug BPR6EIX (6637)

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item 14 NGK Iridium-IX Spark Plug BPR6EIX #6637

NGK 6637 Iridium IX Spark Plug BPR6EIX, 1 Pack

item 15 NGK 6637 Iridium IX Spark Plug BPR6EIX, 1 Pack

Spark Plug-Iridium IX NGK 6637

item 16 Spark Plug-Iridium IX NGK 6637

+$6.30 shipping

Spark Plug-Iridium IX NGK 6637

item 17 Spark Plug-Iridium IX NGK 6637

+$6.30 shipping

Spark Plug-Iridium IX NGK 6637

item 18 Spark Plug-Iridium IX NGK 6637

+$6.30 shipping

Spark Plug-Iridium IX NGK 6637

item 19 Spark Plug-Iridium IX NGK 6637

Iridium Spark Plug NGK 6637

item 20 Iridium Spark Plug NGK 6637

Spark Plug-Iridium IX NGK 6637

item 21 Spark Plug-Iridium IX NGK 6637

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item 22 NGK BPR6EIX Iridium Spark Plug - 6637

+$7.99 shipping

1 Pack NGK 6637 Iridium IX Spark Plug BPR6EIX

item 23 1 Pack NGK 6637 Iridium IX Spark Plug BPR6EIX

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item 24 Iridium Spark Plug NGK 6637

One New NGK Iridium Resistor Spark Plug 6637 BPR6EIX for Nissan & more

item 25 One New NGK Iridium Resistor Spark Plug 6637 BPR6EIX for Nissan & more

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item 26 Iridium Spark Plug NGK 6637

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item 27 NGK SPARK PLUGS - 6637 - Iridium IX Spark Plug ? BPR6EIX for Arctic Cat Prowler

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item 28 Spark Plug-Iridium IX NGK 6637

Spark Plug-Iridium IX NGK 6637

item 29 Spark Plug-Iridium IX NGK 6637

item 30 Genuine NGK NGK Iridium IX Spark Plug 6637

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item 31 NGK Iridium-IX Spark Plug BPR6EIX #6637 for BMW

Spark Plug-Iridium IX NGK 6637

item 32 Spark Plug-Iridium IX NGK 6637

Spark Plug #6637/04

item 33 Spark Plug #6637/04

+$10.00 shipping

Set of 2 Genuine NGK 6637 BPR6EIX Iridium IX Spark Plugs

item 34 Set of 2 Genuine NGK 6637 BPR6EIX Iridium IX Spark Plugs

2 pc NGK 6637 BPR6EIX Iridium IX Spark Plugs for XS63DP XS63 XP64DP2 XP64 ox

item 35 2 pc NGK 6637 BPR6EIX Iridium IX Spark Plugs for XS63DP XS63 XP64DP2 XP64 ox

Iridium Spark Plug NGK 6637

item 36 Iridium Spark Plug NGK 6637

NGK SPARK PLUGS 6637 Iridium IX Spark Plug - BPR6EIX

item 37 NGK SPARK PLUGS 6637 Iridium IX Spark Plug - BPR6EIX

+$10.49 shipping

4x BPR6EIX Iridium Spark Plugs 6637 Upgrade Spark/Power Pre-Gapped

item 38 4x BPR6EIX Iridium Spark Plugs 6637 Upgrade Spark/Power Pre-Gapped

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item 39 4 Packs Spark Plugs For ngk Iridium IX 6637 BPR6EIX 6637 BPR6EIX Tune Up

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item 40 Spark Plug-Iridium IX NGK 6637

For ngk Iridium IX SPark Plugs - BPR6EIX (6637) SET OF 4Pcs -

item 41 For ngk Iridium IX SPark Plugs - BPR6EIX (6637) SET OF 4Pcs -

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item 42 NGK BPR6EIX 6637 Iridium Spark Plugs (2-Pack) for BMW R100, XS1100

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item 43 Ngk Spark Plugs 6637 Ngk Iridium Ix Spark Plug

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item 44 NGK SPARK PLUGS Iridium IX Spark Plug — Iridium IX 6637

item 45 Genuine NGK NGK Iridium IX Spark Plug 6637

+$16.99 shipping

Set 4Pcs BPR6EIX SPARK PLUGS 6637 ForAudi 200 Quattro 1989 / 1990 /1991 10V

item 46 Set 4Pcs BPR6EIX SPARK PLUGS 6637 ForAudi 200 Quattro 1989 / 1990 /1991 10V

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item 47 Set 4Pcs For ngk - 6637 - Iridium IX Spark Plugs, BPR6EIX

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item 48 Set 4Pcs - BPR6EIX NEW BRANDS SPARK PLUGS 6637 - For Audi 200 1989 1990 1991

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item 49 4x New #6637 BPR6EIX Iridium Spark Plugs Upgrade Spark/Power Pre-Gapped

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item 50 4 Packs Spark Plugs For ngk Iridium IX 6637 BPR6EIX 6637 Tune Up

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item 51 Iridium Spark Plug NGK 6637

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item 52 4 Pack Spark Plugs NGK Iridium IX 6637 BPR6EIX 6637 BPR6EIX Tune Up

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item 53 NGK Iridium IX Spark Plug BPR6EIX (6637)

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2 Pack NGK 6637 Iridium IX Spark Plugs BPR6EIX

item 56 2 Pack NGK 6637 Iridium IX Spark Plugs BPR6EIX

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item 57 6x New Iridium IX Spark Plugs For XS63DP XS63 XP64DP2 XP64 TM #6637 BPR6EIX

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item 58 8x New Spark Plugs #BPR6EIX 6637 Upgrade Spark/Power Pre-Gapped Iridium

4 Pack NGK Iridium IX Spark Plugs 6637 BPR6EIX 6637 BPR6EIX Tune Up

item 59 4 Pack NGK Iridium IX Spark Plugs 6637 BPR6EIX 6637 BPR6EIX Tune Up

+$2.99 shipping

listings for this product

Ratings and Reviews

4.9

9 product ratings

8 users rated this 5 out of 5 stars
1 users rated this 4 out of 5 stars
0 users rated this 3 out of 5 stars
0 users rated this 2 out of 5 stars
0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

by doug12496
Jun 30, 2017
NGK BPR6EIX Iridium Spark Plug
Premium product offering excellent performance. Fuel economy went from mid 30's to over 41 mpg on my 1978 XS1100. Your mileage may vary depending upon your riding style...
Verified purchase: YesCondition: New
by lamafia_1976
Nov 29, 2021
Good spark plugs
Those items make the engine as soft, quiet and smooth.
Verified purchase: YesCondition: New
by edgrrr75
Mar 09, 2021
Worth it. Should last a long time.u
Great plug for my Enfield Classic 500.
Verified purchase: YesCondition: New
by dee_wreck
Sep 17, 2025
quality
quality
Verified purchase: YesCondition: New
by goodusedtoys1
Sep 07, 2024
Excellent plug, fixed my problem!!...
Excellent plug, fixed my problem!!
Verified purchase: YesCondition: New

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