Kooima Ag

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Kooima Ag For over 30 years, we have been manufacturing replacement parts for forage harvesters, mixer wagon knives, header adapters, combines, and more! ft.
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Please note that comments posted to this page do not represent the opinions of Kooima Ag. Spam and offensive content will be removed at our discretion. For over 30 years, Kooima Ag has built a solid reputation based on the principle of delivering high quality products and inspiring service. We combine passionate people with technology to provide you with value! It is the goal of Kooima Ag to produce the finest quality products possible. We will strive for continuous improvement in our processes, procedures and manufacturing methods and in our customer satisfaction. Company Overview:
For over 30 years Kooima® Ag has been manufacturing replacement forage harvester parts, combine parts, mixer wagon knives, header adapters and more! We are an independent manufacturer of replacement parts for a variety of companies such as John Deere®, Claas®, New Holland® and Krone®, because of this we are able to produce quality parts at competitive prices. Try the Kooima® Ag Direct Advantage today! You will eliminate the middleman by communicating with a one source dealer, distributor and manufacturer so we understand your questions and needs. Company History: Kooima® Ag began as a division of Kooima Company. Kooima Company began in 1988, in a rented 1200 sq. building as a stamping job shop, owned by John and Phil Kooima, a father/son partnership. It had one milling machine and two employees. Kooima Company grew into the Midwest's best fully-integrated job shop, employing 165 people in 2019. The Kooima® Ag division grew with them, serving our customers with high-quality replacement parts at a great value. Kooima® Ag emerged as a leading Ag knife-maker, providing quality knives for mixer wagons, forage harvesters, and other applications. Along the way, Kooima® Ag has brought several industry-first innovations to market, incorporating our trademark Koyma Klad® hardfacing technology into new parts that last longer and wear better. Our engineers worked with farmers across the country and the world to develop unique solutions to the problems they were facing, such as grinding earlage and compost turners. Our technicians use the latest machines and technology to create great products for the Ag industry. Our in-house metallurgist ensures that our knives and parts are the best quality possible. In 2019, the job-shop division of Kooima Company was acquired by State Steel and SPS. As a result, the Kooima® Ag division is now an independent company, still under the ownership of Phil and Kristi Kooima. This allows Kooima® Ag all the same strengths as previously, plus the flexibility to operate independently as our own company. We are very excited for this new chapter in our history, and look forward to continuing our legacy of quality replacement parts at competitive prices. We are experts in the fields of:

Agricultural knife-making
Laser welding
Metal deposition (carbide, stainless steel, nickel, and others)

We offer free freight on USA retail Internet orders, and offline retail orders over $850 in the continental United States. In most instances, there will be same day shipping on all in stock orders placed by 3:00 pm CST. Methods of payment include MasterCard®, Visa®, Discover®, John Deere Financial®, PayPal and personal checks. Request a FREE Ag parts catalog! Customer reviews:
"As a first time user I didn’t know what to expect from your company , I could not be happier your order process was very easy and your shipping was very prompt. Very thing we ordered was just what we had asked for and arrived ahead of time. Can’t ask for anything better will be ordering from you again when we need something you offer . Can’t believe you even sent a fifty pound order free shipping , thanks so much"
- Lynn from Idaho

Baler parts are in stock and ready to ship!Shop our selection online or call today at 800-522-8874.
10/19/2026

Baler parts are in stock and ready to ship!

Shop our selection online or call today at 800-522-8874.

Find the right-size trailer for your operation, now at a discounted price! We have our 15-ton, 18-ton, and 30-ton traile...
10/16/2026

Find the right-size trailer for your operation, now at a discounted price! We have our 15-ton, 18-ton, and 30-ton trailers left in stock. Get yours at a discount before they're gone!

15-Ton | 741 FT³
Regular $39,900
👉 NOW $34,900
$47.10 per ft³ | SAVE $5,000

18-Ton | 1,094 FT³
Regular $52,900
👉 NOW $44,900
ONLY $41.04 per ft³ | SAVE $8,000
$44.37 per ft³ | SAVE $10,000

30-Ton | 2,000 FT³
Regular $99,900
👉 NOW $84,900
ONLY $42.45 per ft³ | SAVE $15,000

Call our office today or shop online to save.

We're hiring!We're looking for someone with close attention to detail who takes pride in their work. This role plays a k...
10/15/2026

We're hiring!

We're looking for someone with close attention to detail who takes pride in their work. This role plays a key part in producing precision components for agricultural equipment that is used by farmers across North America!

If this sounds like you or someone you know, apply online or call today!

Over the last few weeks, these ladies have stepped in to support our warehouse crew, helping ensure orders were shipped ...
10/14/2026

Over the last few weeks, these ladies have stepped in to support our warehouse crew, helping ensure orders were shipped the same day so customers could stay in the field when it mattered the most.

To thank them, they spent the day in Sioux Falls enjoying a relaxing morning at the spa, followed by a cooking class at Plum's Cooking Company! 💆‍♀️🍝

Turn food waste into opportunity. 🌱The Food Waste Processing Infrastructure Grant is designed to help Oregon increase it...
10/13/2026

Turn food waste into opportunity. 🌱

The Food Waste Processing Infrastructure Grant is designed to help Oregon increase its capacity to recover and process more wasted food.

For facilities looking to expand their processing capabilities, this is an opportunity to invest in equipment that can make a difference for your operation.

Applications are open now until November 30th! Learn more at https://www.kooimaag.com/products/kooima-compost-turners/kooima-ag/food-waste-processing-infastructure-grant-rgsrv-zznlb-zfilj or call today.

Behind every part we manufacture is a team that makes it happen every day. It takes months of hard work, planning, and d...
10/12/2026

Behind every part we manufacture is a team that makes it happen every day. It takes months of hard work, planning, and dedication from every department to ensure we're there for our customers when they need us most.

As a thank-you for all their work, each department gets a chance to enjoy a team outing! Our Production Team spent the day fishing and enjoying some well-deserved time together.

We’re grateful for everything they do to help us keep farmers running. 👏

Today we celebrate and recognize the hard work and resilience of the people who keep the agriculture industry moving.Hap...
10/12/2026

Today we celebrate and recognize the hard work and resilience of the people who keep the agriculture industry moving.

Happy National Farmers Day from all of us at Kooima Ag.

Harvest smoothly with the Domai 12-Row Folding Corn Head.This corn head maximizes efficiency, reduces grain loss, and ke...
10/08/2026

Harvest smoothly with the Domai 12-Row Folding Corn Head.

This corn head maximizes efficiency, reduces grain loss, and keeps your John Deere combine moving confidently through the field.

Compatible with John Deere combines or any forage harvester using a Kooima Ag earlage adapter.

Shop online or call today.

When wet fields, short harvest windows, and downtime matter most, don't waste your harvest window. Call or message us to...
10/06/2026

When wet fields, short harvest windows, and downtime matter most, don't waste your harvest window.

Call or message us today and save big on an ag trailer!

Want the chance to be featured in Kooima Ag's catalog or on our social media pages? Submit your 2026 harvest photos now!...
10/05/2026

Want the chance to be featured in Kooima Ag's catalog or on our social media pages?

Submit your 2026 harvest photos now!

DM or comment your name and/or farm name, where you're from, a little about your operation, or how you heard about Kooima Ag!

Address

2642 Rock Ridge Road
Rock Valley, IA
51247

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 5pm
Thursday 7am - 5pm
Friday 7am - 5pm

Telephone

+18005228874

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