KELLY Tillage Parts — Support for Your KELLY Diamond Harrow in the U.S.
Hood & Company is KELLY Tillage's U.S. representative — the manufacturer's arm in the U.S. that stocks parts, supports the KELLY dealer network, and provides technical guidance for KELLY Diamond Harrow owners. KELLY Tillage parts are sold and delivered through your local KELLY dealer; if you don't have a dealer yet or need help identifying the right part, call Hood & Company at 417-865-2100, and we'll connect you with your local dealer and coordinate the parts on the back end.
We support the full KELLY Diamond Harrow current and legacy lineup: 12X, KDH-2006, KDH-30, KDH-3009, KDH-4012, KDH-45, KDH-4614, KDH-60, and KDH-6218HDX. KELLY's own U.S. Parts Contact page and its current product literature list Hood & Company at 417-865-2100 as the U.S. representative.
Contact Hood & Company to find your local KELLY dealer: 417-865-2100 | sales@hoodco.com
Looking for a whole disc chain (a new CL1, CL2, K4, W36, or SD49 chain) rather than replacement wear parts? See our KELLY Disc Chains page (coming soon) — the same dealer-channel process applies.
How KELLY Parts Are Sold in the U.S.
KELLY Tillage is sold in the U.S. through a network of local KELLY dealers. Hood & Company is the U.S. representative for the manufacturer — we stock KELLY parts and coordinate with dealers on the sales, delivery, and technical side. Farmers and machine owners order through their local KELLY dealer, who works with Hood to get the right part shipped and installed.
If you already have a KELLY dealer relationship, contact them first. If you don't know who your local dealer is — or if you'd like technical help identifying the right part before your dealer places the order — call Hood & Company at 417-865-2100, and we'll help.
When Should I Replace My KELLY Disc Chain?
KELLY Disc Chains are wear items. KELLY publishes specific measurement thresholds for when a chain has reached the end of its useful life:
CL1, K4, and W36 Disc Chains — Replace when worn to the bottom of the KELLY logo, or 4.9 inches (125 mm) from the center of the disc.
CL2 Disc Chain — Replace when worn to 5.5 inches (140 mm) from the center of the disc.
If your chain is at or past this threshold — or no longer performing the job you originally bought it for — it's time to order a new chain through your dealer. If it's not yet at the threshold but individual blades on your CL2 or K4 have worn out, order replacement blades instead.
KELLY Warranty on Parts and Chains
Before ordering a replacement, check whether the part may still be under KELLY warranty. Coverage varies by part:
CL1 Disc Chain — The CL1 Disc Chain carries a 50,000-acre wear warranty.
Other KELLY Disc Chains — CL2, K4, W36, and SD49 chains are warrantied against faulty workmanship and materials. (Wear is not covered on these chains the way it is on CL1 — talk with your dealer or Hood to confirm coverage on your specific case.)
Sealed swivel bearings — Sealed swivel bearing units carry a 10,000-acre wear warranty.
Machine and frame — 12 months from date of purchase by default. When the machine is registered with KELLY, the frame carries a 4-year warranty.
Warranty claims are processed through your local KELLY dealer with support from Hood & Company. Have your model, serial number, purchase date, and rough acreage handy when you or your dealer make the claim.
Replacement Blades — For Owners with a Sound Chain but Worn Blades
Two KELLY chain platforms are designed with replaceable cutting blades — the CL2 and the K4. When the blade wears (but the chain hasn't reached the whole-chain replacement threshold above), the chain body stays on the machine and you swap the wear item. Order these through your local KELLY dealer.
CL2 Replaceable Cutting Blade
The CL2 Disc Chain uses a heavy cast steel boss with a replaceable cutting blade. When the blade wears, the boss stays on the chain and the blade is replaced. Order when the CL2 blades on your machine have worn down but the bosses and chain are still sound and above the 5.5-inch replacement threshold.
K4 Replaceable Cutting Blade
The K4 Disc Chain uses a mid-weighted cutting disc with a bolted replaceable blade. Blades can be swapped without disassembling the whole chain. KELLY offers blade options for the K4 platform — talk with your dealer or Hood & Company to confirm which blade fits your machine and your job.
Wear Parts & Service Components — What Hood Stocks for the U.S. Market
Beyond replaceable blades, Hood & Company stocks the following KELLY service parts to support the U.S. dealer network:
Sealed swivel bearings — Sealed swivel bearing units — these connect each disc gang to the machine frame. Highly durable, carry a 10,000-acre wear warranty (see above).
Chain link components — Individual chain link components (hooks, eyes, bosses) for repairing a worn section of chain rather than replacing the entire run.
Chain-tension parts — Chain-tension components for keeping the chain properly loaded during operation.
Hitch and drawbar hardware — Hitch and drawbar hardware — including T-Style drawbar components on 3009/4012/4614 models.
Model-specific parts — Load-sharing axle components on the 4614 and 6218HDX models, plus larger-frame service parts specific to the 6218HDX.
Hydraulic hoses and fittings — Replacement hoses and fittings for KELLY hydraulic systems, sourced through Hood & Company from compatible suppliers.
Parts availability varies by model and era. Ask your dealer (or Hood, if you don't have a dealer yet) with your model number, serial number, and — for chain parts — your chain type ready.
How to Get KELLY Parts
The process is straightforward:
Identify the part — Serial number, model, chain type (CL1, CL2, K4, W36, or SD49). If unclear which part you need, a photo of the worn or damaged part helps.
Contact your local KELLY dealer — They'll place the order and coordinate with Hood & Company on availability and shipping.
Or, if you don't have a dealer yet — If you don't know who your local KELLY dealer is, call Hood & Company at 417-865-2100 — we'll connect you.
For technical questions about which part you need, chain configuration guidance, or warranty questions, Hood & Company provides technical support directly — call 417-865-2100 or email sales@hoodco.com.
KELLY's Official Parts Catalog & Manuals
KELLY Tillage hosts an online interactive parts catalog for visual part identification, plus PDF parts and assembly manuals for each Diamond Harrow model. Use these to identify a part, then contact your local KELLY dealer (or Hood & Company) to place the order.
Online Interactive Parts Catalog
Legacy Model-Specific Parts & Assembly Manuals (PDF)
KELLY Tillage's U.S. Parts Contact page names Hood & Company as the U.S. representative — see kellytillage.com/us/parts-contact.
Frequently Asked Questions
Where can I buy KELLY Tillage replacement parts in the United States?
KELLY Tillage parts are sold through a network of local KELLY dealers. Hood & Company is KELLY's U.S. representative — we stock parts and coordinate the parts channel behind the dealers. If you have a local dealer, contact them first. If you don't, call Hood & Company at 417-865-2100 and we'll connect you with your local KELLY dealer.
Does Hood & Company sell KELLY parts directly to farmers?
No — KELLY parts are sold in the U.S. through a network of local KELLY dealers. Hood & Company is the manufacturer's U.S. representative and stocks parts on behalf of that dealer network. If you don't have a KELLY dealer, call Hood at 417-865-2100, and we'll connect you.
When should I replace my KELLY disc chain?
KELLY publishes measurement thresholds. For CL1, K4, and W36 chains, replace when the disc is worn to the bottom of the KELLY logo, or 4.9 inches (125 mm) from the center of the disc. For CL2 chains, replace when the disc is worn to 5.5 inches (140 mm) from the center of the disc.
Is my part covered under KELLY warranty?
It depends on the part. The CL1 Disc Chain carries a 50,000-acre wear warranty. CL2, K4, W36, and SD49 chains are warrantied against faulty workmanship and materials. Sealed swivel bearings carry a 10,000-acre wear warranty. The machine is warrantied for 12 months by default, with a 4-year frame warranty when the machine is registered with KELLY. Warranty claims run through your local KELLY dealer with Hood & Company support.
Can I replace just the blades on my CL2 disc chain?
Yes. The CL2 Disc Chain is built with a replaceable cutting blade mounted to a heavy cast steel boss. If the chain and bosses are sound (above the 5.5-inch replacement threshold) but the blades are worn, order CL2 replacement blades through your dealer.
Can I replace the blades on my K4 chain, and can I switch blade types?
The K4 uses a bolted replaceable blade on a mid-weight cutting disc, and blades can be swapped without disassembling the whole chain. KELLY offers blade options for the K4 platform; talk to your dealer or Hood & Company to confirm which blade fits your machine and your job.
Can I repair a worn section of chain, or do I need a whole new chain?
In most cases, you can repair a section. Most KELLY chains are built with hook-and-eye linkage — individual link components let you rebuild worn sections without replacing the full chain run. If the discs themselves are at the KELLY-published replacement thresholds (4.9" for CL1/K4/W36, 5.5" for CL2), it's time for a new chain rather than a section repair.
Does Hood & Company stock KELLY parts?
Yes. Hood & Company stocks KELLY parts on behalf of the U.S. dealer network. Parts are sold to farmers through their local KELLY dealer, but the parts themselves are held and shipped through Hood & Company.
Do you support older KELLY models like the KDH-30, KDH-45, and KDH-60?
Yes. Hood & Company supports KELLY owners across the full lineup — from legacy KDH-30, KDH-45, and KDH-60 machines to the current 12X, 2006, 3009, 4012, 4614, and 6218HDX. Parts availability varies by model and era; have your model and serial number ready when you contact your dealer.
How do I identify my KELLY Diamond Harrow model and serial number?
The serial number and model designation are on a plate mounted on the machine frame. Current-lineup models are named for their approximate working width — a 4614 is a 46-foot machine, a 6218HDX is a 62-foot machine. If you can't find your serial plate, send a photo of the machine to your dealer or to Hood & Company, and we can help identify the model.
Do you offer technical support with parts?
Yes. Hood & Company provides technical support directly — chain configuration recommendations, replacement scheduling, warranty guidance, and troubleshooting — even though the sale itself runs through your local dealer. Call 417-865-2100 or email sales@hoodco.com.
Contact Hood & Company
Hood & Company is KELLY Tillage's U.S. representative, based in Springfield, Missouri. We stock KELLY Tillage parts and support the U.S. KELLY dealer network. Call to find your local dealer or for technical support:
Phone: 417-865-2100
Email: sales@hoodco.com
Hours: Monday–Thursday, 8 AM – 4 PM CST, Friday, 8 AM- 12 PM CST