CAT RP5500 Ignition Coil



Ignition Coil at Generator Parts World

This is a CAT RP5500 Gas Engine Ignition Coil

This is for a CAT RP5500 gas engine ignition coil. This ignition coil is used on a wide variety of engines from 4hp to 9hp but there are some exceptions. It is very common for ignition coils to be marked for the main engine family they are made for, such as 168 or 188. However these coils will work for engines both above and below the main engine family.

The coil for sale here is a 188 engine coil. This coil appears to be close in appearance to the 168 and other coils but can be identified by bolt hole spacing and physical shape. If you are not sure which coil you need a good way to identify yours is simply comparing the physical look and bolt hole spacing as these will almost always be different from coil to coil. This coil mounts with 2 bolts through the body and has a single quick connect wire as well as the spark plug wire.

Most of the time the old rule of thumb with coils is true. You can gap the ignition coil the thickness of a business card from the flywheel to get good spark. There can be other variables though that call for a more precise method. If using a business card doesn’t work then look up the ignition coil gap in your owners manual for your unit and use a feeler gauge to set the gap. Once the gap is set then use the feeler gauge again to ensure that you have the correct gap.

We offer this ignition coil by itself or in larger kits with other parts that may be needed to repair your small equipment such as spark plugs, fuel cocks, and carburetors. View the pricing and photos of these kits by selecting your needs from the drop down menu above.


Engine Type: Gas
Hole Spacing: 2-11/16″ Center to Center
Hole Type: Slotted
Slotted Hole Size: 1/2″ Tall x 1/4″ Wide

This ignition coil will ship from within the US. All orders ship next business day after cleared payment. We offer several different shipping methods with different delivery times. Please review the shipping tab above this text for more information including handling time, shipping options, USPS information, UPS information, and more.

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Wholesale Bulk Part Pricing

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Ignition Coil from Generator Parts World on eBay!

All parts are universal parts and are not intended to be represented as OEM parts but represented as parts that are direct replacement parts for specific brands and models, including but not limited to generators and other small engine powered equipment. Generator Parts World will offer a 90 replacement warranty of any part purchased from us under our 90 day replacement policy

Additional information

Weight8 oz
Engine Type

Gas Engine

Connection Bolt Spacing

2-11/16" Center to Center

Hole Type


Hole Size

1/2" Tall by 1/4" Wide

Connection Type

1 Wire Quick Connect

Shipping Info

All orders will ship from one of our locations within the US, most commonly from Missouri. All orders ship next business day after cleared payment. Business days are Monday through Friday with the exception of holidays.

Our 2 Day Express option may use different carriers such as UPS, FedEx, USPS, or Amazon to offer the best delivery time available. The tracking for your order will be uploaded to PayPal and your order details here on our website. If you need your parts as fast as possible explore on of the shipping options detailed below. All estimated delivery dates below are the estimated time it will take to deliver your order once it ships.

Shipping Within the United States

Free Shipping using First Class Mail: 4 to 6 day delivery
USPS Priority Mail Service: 2 to 4 day delivery
USPS Express Service: 1 to 2 day delivery
UPS Ground Service: 1 to 4 day delivery
2 Day Express Service: 1 to 2 day delivery


Shipping Outside the United States

USPS First Class to Canada: Estimated 10 Days

USPS First Class Worldwide: Estimated 14 to 21 Days


In October of 2021 USPS slow mail delivery on First Class Mail and other services. Please be aware of possible delays by all carriers at peak times such as holidays. Below are some links that can be helpful in identifying delivery times to your location, holiday schedules, and possible delays by the 2 most common carriers we use, USPS and UPS.

USPS Service Alerts

USPS Holiday and Event Schedule

UPS Service Alerts

UPS Holiday Schedule

UPS Ground Shipping Time Map