In-Store Pickup Location Close

Bosch Platinum+4 Spark Plugs 4458

Spark Plug, Platinum +4, Tapered Seat, 14mm Thread, .708 in. Reach, Resistor, Each

Estimated Ship Date: Today Would you rather pick it up? Select Location

Manufacturer's Part Number: 4458
Part Type: Spark Plugs
Summit Racing Part Number: BCH-4458

UPC: 00028851019552
Shorty Spark Plug: No
Resistor: Yes
Manufacturer Heat Range: 8
Electrode Core Material: Copper
Electrode Tip Material: Platinum
Spark Plug Thread Size: 14mm
Spark Plug Reach: 0.708 in.
Spark Plug Seat Style: Tapered
Wrench Diameter: 5/8 in.
Ground Strap Quantity: Four
Quantity: Sold individually.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

If you require the best in performance and the longest performance life, Platinum+4 is the spark plug for you. Platinum+4's unique revolutionary firing technology combines the advantages of surface air-gap technology, four ground electrodes, and a heat-fused center electrode with more pure platinum, to create the most powerful spark you can buy. Bosch Platinum+4 spark plugs provide optimum access to the air/fuel mixture, for the most efficient combustion and a longer performance life.

Warranty

Most Helpful Reviews Review this Product

7 Customer Reviews for Bosch Automotive 4458 - Bosch Platinum+4 Spark Plugs

Average Customer Review

5 Star

(6)

4 Star

(1)

3 Star

(0)

2 Star

(0)

1 Star

(0)
+See All 7 Reviews

perfect

Summit RacingSummit Racing Verified Purchase

Just perfect at low price

0 of 0 found this review helpful.

report abuse

Report Abuse Close

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: ROYER from Canada

Date: September 17, 2014

Appearance
Ease of Installation
Price/Value
Quality

Instant difference in performance.

Summit RacingSummit Racing Verified Purchase

I went from a still good autoshop brand basic plug to the Platinum 4s. My idle smoothed out and no more issues. I'm happy with my buy.

0 of 0 found this review helpful.

report abuse

Report Abuse Close

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: DANIEL from WA

Date: September 12, 2014

Appearance
Ease of Installation
Price/Value
Quality

02 VX Holden Commodore (Buick V6)

Summit RacingSummit Racing Verified Purchase

Must say when I installed these into the car noticed instantly was a lot smoother the idle. On LPG I am getting more out of the tank and for the price these are 15-20kms and they get replace.

0 of 0 found this review helpful.

report abuse

Report Abuse Close

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: ADAM from Australia

Date: September 05, 2014

Appearance
Ease of Installation
Price/Value
Quality

Bosch Platinum plugs FTW

Summit RacingSummit Racing Verified Purchase

Again these plugs are without question the suited for my wifes vehicle. None were broken and packaged with care. Summit as always got it to my house in record time and with nothing missing. Good job Summit!

0 of 0 found this review helpful.

report abuse

Report Abuse Close

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: JOHN from CA

Date: August 28, 2014

Appearance
Ease of Installation
Price/Value
Quality

Bosch is good stuff

Summit RacingSummit Racing Verified Purchase

I have always been a big fan of Bosch parts. I installed these on my 2.5L Mazda pickup motor and noticed a problem right off the bat; the threading on these plugs is over twice as long as OEM Autolite plugs. Luckily, in the case of the 2.5L block, you can't torque these down because of the little "shoulders" on the threading on the block. But be sure to match your existing depth on the spark plugs. ...read more

0 of 0 found this review helpful.

report abuse

Report Abuse Close

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: MARSHALL from CA

Date: July 04, 2014

Appearance
Ease of Installation
Price/Value
Quality

Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

Back To Results
Email this page Close
Close