Welcome!

If you do not receive a reply after placing an order, PLEASE CHECK YOUR SPAM FOLDER! For unknown reasons, many replies go directly to the recipients spam.

Welcome to our web page catalog. We specialize in garden tractor custom components and accessories made for the older International Harvester Cub Cadet garden tractors. However, most components work well on other makes of tractors that are powered by Kohler or Onan engines. These include John Deere, Ariens, Bolens, Case, Allis, Ford, Gravely, Jacobsen, and Wheel Horse.

The ignition system components are our specialty. These products have been garden tractor Pull Proven; that is, tested under the demands of competition tractor pulling. They've also been bench tested for thousands of hours to assure reliability in every-day mowing applications. Many satisfied customers attest to improved, consistent performance with vastly increased running time between tune-ups.

Company History

I've been an IH Cub Cadet enthusiast for many years and have developed or discovered the components listed on this site to improve the performance and reliability of my tractors. All of the items shown have, or are currently, operating on my Cub Cadet 1250 that is used year-round. Friends showed interest in purchasing these components and thus Kirk Engines, Inc. was formed. This is a hobby business and I'm not available for phone orders, thus please conduct all correspondence via email. I may be accessed by clicking on the link at the bottom of the catalog. I'm happy to answer questions about any of the products listed here, or just engine/tractor questions in general. All I ask is that you don't put me on a "mass mailing" list, don't forward a chain mail letter to me, don't send jokes (I've seen them all), or send large picture or video files. Legitimate questions are always welcomed.

How to Order

  • Please scroll through the catalog and note the items and quantities you're interested in. Shipping costs reflect that of a single item only. Ordering several items at once saves on shipping as only one box is usually required.
  • Fill out the order form. Select the items and quantities you're interested in purchasing along with your name, address and payment option.
  • We will respond with a total cost, including shipping for your order. Shipping costs shown are for the lower 48 states. Additional postage is required for Alaska, Hawaii, and Canadian orders.
  • Payment is by cashier's check, money order, or personal check made out to Kirk Engines, Inc., and sent to the address given in the email response. Kirk Engines now also accepts PayPal.
  • We ship via the U. S. Postal Service. Please allow 7 to 14 days for delivery after placing your order.
  • We sell only the items shown. We do not stock or sell any other tractor or engine parts.

Company News

We've been experiencing some problems lately with receiving order quotes. Also, some customers report that they get no response after submitting an order. If you do not hear a response from us within 24 hours of submitting your order, please use my e-mail address at dkirk@milwpc.com and let me know. Also, use this address for all direct correspondence regarding specific questions on products, engine-related issues, etc. If possible, please list your phone number and I'll call you if e-mail communication breaks down. Please check your spam folder! Customers report that many of my replies go directly to their spam folder for reasons that I cannot correct for.

Please note that I answer every e-mail in a timely fashion. If you do not receive a reply within 24 hours, please check your spam folder...chances are you'll find me there. I also receive at least one inquiry per month where the sender's e-mail address is entered improperly and my reply bounces. Make sure that your e-mail address is valid.

Remember, this is a hobby business. Be patient - this is no big-box retailer. Every attempt is made to get your order shipped right away but sometimes delays occur due to demands of my "real job". Please do not ask for Next Day shipments or rush orders - plan ahead so that you're rush is not my rush. Also don't ask for any parts to be shipped prior to payment being received in full. Getting stiffed several times has made me leery.

The outbreak of COVID has had a detrimental effect on getting electronic components delivered on time. This has delayed production of the Trandenser and causing back-orders to exist. Also, prices have increased on said components. Please note that I'm striving to keep prices down but some increases are inevitable.

Kohler Performance Parts and More

Trandenser II Electronic Ignition System

We are no longer carrying this product. You can check at the manufacturer's link for availability and price - http://overnight-solutions.com/

Click Here for Trandenser II Instructions and Schema

Trandenser II Electronic Ignition System price each - $0.00 plus $0.00 Priority Mail Shipping

Trandenser II Mounting Clamp

For those requiring a condenser clamp to mount the Trandenser II, these high-quality loop clamps are available. This clamp is a necessity for Onan applications as the Trandenser must be mounted external to the engine (not in the original points box location). These hard-to-find clamps are made of steel to resist vibrational-induced failures and are galvanized to prevent corrosion. Mounting is via a single, .250 diameter screw (not included). If your current condenser clamp is in poor shape or missing, you will need this clamp to properly mount the Trandenser.

Trandenser II Mounting Clamp price each - $3.00 plus $5.00 Priority Mail Shipping

Dual SuperCoil for Kohler and Onan Opposed Twins

Why pay over $120.00 for a factory replacement coil when this high quality part is available for less than half the price? The Dual SuperCoil is made especially to our specifications and is wound with a high resistance primary of 6.1 ohms for improved performance, yet is not detrimental to breaker point life. No external ballast resistor is required. Epoxy-potted windings yield maximum resistance to vibration. This coil is intended for 12 volt battery-breaker points systems only...will not work on the factory breakerless ignition systems. It functions perfectly with the Trandenser and is a highly-recommended combination. Made by a major coil manufacturer.

Dual SuperCoil for Kohler and Onan Opposed Twins price each - $65.00 plus $12.00 Priority Mail Shipping

Genuine Kohler Breaker Points

Finally, we've found a supplier for this important component. Don't install a Trandenser II without replacing breaker points - old, oxidized and pitted points handicap the operation of the module right from the beginning. These are the genuine article, made to Kohler's high quality standards. Part number is 47 150 03-S which fit all Kohler K-series single and twin-cylinder engines. Note - these breaker points are for Kohler engines only - these will not work in Onan engines.

Genuine Kohler Breaker Points price each - $16.00 plus $6.00 Priority Mail Shipping

Breaker Points & Cover Retaining Screw Kit

Ever try replacing breaker points then drop one of those factory supplied, slotted head screws down into the depths of the tractor, never to be found again? This handy kit will greatly reduce the chance of that happening. It consists of four socket head cap screws (Allen screws) and lock washers. By using an Allen wrench, the chance of dropping these is greatly reduced. Plus, more tightening torque can be applied, lessening the chance of loosening in service. For all Kohler single cylinder K-series engines.

Breaker Points & Cover Retaining Screw Kit price each - $2.00 plus $2.00 Priority Mail Shipping

Breaker Points Push Rod

Early Kohler K-series, single-cylinder engines were fitted with aluminum points push rods. These rods tend to wear over time, causing a loose fit in the block, leading to erratic ignition timing, poor running quality, and even starting issues. The replacement is a steel push rod that will easily last the life of the engine. It is highly recommended that all aluminum push rods be replaced when servicing your ignition system. It is easy to test if you have the aluminum part - using a small magnet, test to see if magnet is attracted to the push rod - if it does not attract, replace it with this high-quality part. I've recently contracted with a machine shop to produce these parts to the same quality as the original Kohler part. These are made from precision alloy steel drill rod with ground finish and polished ends. Price is now reduced to half that of the original.

Important - this part fits only single-cylinder Kohler K-series engines, specifically K91, K241, K301, K321, K341, and K361.

Breaker Points Push Rod price each - $10.00 plus $6.00 Priority Mail Shipping

Kohler 15 Amp Rectifier-Regulator

Brand-new voltage rectifier-regulators as used on Kohler AQS engines equipped with flywheel alternators. The 15 amp system is that used on most garden tractor applications. This regulator was also used on many Magnum and Command series Kohler engines. It replaces the following Kohler part numbers:

25 403 03 : 25 403 03-S : 25 755 03 : 25 755 03-S : 41 403 01 : 41 403 03 :

41 403 04 : 41 403 03-S : 41 403 05 : 41 403 06 : 41 403 06-S : 41 403 08 :

41 403 08-S : 41 403 09 : 41 403 09-S : 41 403 10 : 41 403 10-S

Note: This regulator will not work on those engines equipped with starter-generators.

Kohler 15 Amp Rectifier-Regulator price each - $20.00 plus $5.00 Priority Mail Shipping

Billet Aluminum Covers Set for Kohler K-Series

Billet Aluminum Breather Cover allows remote routing of breather gasses, keeping exterior of engine clean. Unrestricted passage lets engine breathe more freely. The Billet Steel Fuel Pump Cover matches breather cover perfectly, for that detailed, quality look. Breather cover is made from aircraft quality aluminum alloy, fuel pump cover made from plate steel. Available only in a high quality, powder coated flat black finish due to customer requests. Covers may be ordered separately - just state which cover you are interested in the "comments" section on the order form.

For use on Kohler K241 (10 hp), K301 (12 hp), K321 (14 hp), and K341 (16 hp) single cylinder engines only. Made in U. S. A.

Breather Cover price each - $35.00 plus $6.00 shipping

Fuel Pump Cover price each - $12.00 plus $6.00 shipping

Billet Aluminum Covers Set for Kohler K-Series price each - $45.00 plus $5.00 Priority Mail Shipping

Muffler Crutch

Attention owners of tractors powered by Kohler AQS model engines...

Tired of repairing or replacing that expensive aluminum muffler baffle frame casting that always cracks?

Fed up with welding, replacing, or otherwise tightening muffler parts that always seem loose?

Can't stand those annoying rattles that you can't trace down?

There now exists a fix - the Muffler Crutch.

This quality, heavy gauge steel brace takes the load off the overhung end of the muffler and transmits it into the engine block fastener, relieving the stress on the baffle casting. No more cracks or rattles. Simple installation - just bolts into existing holes. No drilling or welding necessary. Supplied unpainted. For use on Kohler AQS models K241 (10 hp), K301 (12 hp), K321 (14 hp), and K341 (16 hp) single cylinder engines only. Made in U. S. A.

Muffler Crutch price each - $20.00 plus $8.00 Priority Mail Shipping

Nylock Air Filter Wing Nut For Kohler and Onan Engines

Nylock Air Filter Wing Nut For Kohler Engines

A loose air filter housing allows dirt to enter engine. Don't take a chance - replace that stock, stamped tin fastener with a heavy duty, high quality, self-locking wing nut.

These are die cast, bright cadmium-plated nuts with a nylon insert to ensure secure retention. They look nice, too. Thread size is 1/4 - 20. Replaces original perfectly.

Nylock Air Filter Wing Nut For Kohler and Onan Engines price each - $2.00 plus $3.00 Priority Mail Shipping

IH Cub Cadet Stainless Foot Tread Screw Set

Why not dress up your tractor with this nice set of foot tread screws? These are bright stainless steel, button head socket screws with stainless washers that will never rust or corrode. And if you ever need to remove them, it's a snap - only tool required is an Allen wrench. They won't rust in place like the original mild steel, slotted head screws did. This set consists of 8 screws and washers, enough for both right and left side foot treads.

IH Cub Cadet Stainless Foot Tread Screw Set price each - $6.00 plus $5.00 Priority Mail Shipping

IH Cub Cadet Hood Edge Strip

Here is a practical accessory that not only improves the looks of your tractor, but it eliminates annoying rattles as well. The Hood Edge Strip is a soft, flexible, textured black vinyl plastic edge trim with a metal core. It easily installs in minutes - trim to exact length and just press into place. Sold in 28 inch lengths which fit virtually all models of IH Cubs. For other tractor brands requiring different lengths, I will custom cut to the dimension you specify. Reupholstering your seat? This trim is an exact replacement.

IH Cub Cadet Hood Edge Strip price each - $8.00 plus $9.00 Priority Mail Shipping

Magnetic Oil Drain Plug for all Kohler K-series Engines

Next best thing to a full flow oil filter!

The single cylinder Kohler K-series engines are splash lubricated. As no oil pump is used, there is no easy way to adapt an oil filter. Thus, stray ferrous metal particles remain suspended in the oil until it is changed. These contaminants can damage both plain and rolling element bearings, shortening engine life. A magnetic drain plug will attract these harmful particles and prevent them from circulating, thus protecting bearings and keeping oil cleaner. It's like having a perpetual oil filter - simply wipe off particles during an oil change, then reinstall.

These plugs are fitted with a powerful ceramic disc magnet, offering high strength with large surface area. You'll be amazed at how much metal they collect between oil changes, especially on freshly rebuilt engines.

Size is 3/8 - 18 taper pipe thread, commonly used on many small engines. This plug also fits Kohler AQS (Quietline) engines that use a flanged 3/8 - 18 straight thread plug. You'll find the taper thread eliminates leaks and there's no finicky gasket to replace.

Magnetic Oil Drain Plug for all Kohler K-series Engines price each - $3.00 plus $5.00 Priority Mail Shipping

The Battery Mat

The scientific method to protect your tractor from destructive battery acid leaks.

Here is a very clever product that is now available for lawn and garden tractor applications. Made of a super absorbent polypropylene needle-punch felt, The Battery Mat contains powerful neutralizing agents that render leaking or spilled acid harmless. Due to the compliant nature of the material, Battery Mat also provides a cushion to the underside of your battery, lessening destructive impact forces and thus contributing to longer battery life. Furnished size is 7.75 by 8.25 inches, large enough for all small tractor batteries. The Battery Mat is easily trimmed to size using a utility knife and straight edge, or a pair of ordinary scissors.

Don't take a chance on nasty battery acid ruining your paint job or rusting your battery box! Let The Battery Mat protect your valuable machinery.

A Patented, Made in U. S. A. Product.

The Battery Mat price each - $6.00 plus $5.00 Priority Mail Shipping