• Kubota V2203 Piston & Ring Set 0.50 Oversized 16423-21910 87.50mm
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Kubota V2203 Piston & Ring Set 0.50 Oversized 16423-21910 87.50mm

Kubota V2203 Piston & Ring Set 0.50 Oversized 16423-21910 87.50mm

2446-2447

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Complete piston and ring set for the Kubota V2203 diesel engine — 0.50mm oversized (87.50mm). Replaces OEM part numbers 16423-21910 and 17331-21090. Use this kit if your cylinders have been bored 0.50mm oversize.

Package Includes: 1 × Piston · 1 × Piston Pin · 1 × Ring Set · 2 × Clips

Specs: Piston size 87.50mm (0.50 oversize) · Pin bore 25mm · Fits Kubota V2203

Sold per cylinder. Order 4 for a complete V2203 rebuild.

Ships same-day on orders placed before 3 PM PST. Free shipping. 30-day returns.

Not sure it fits? Call (818) 261-3896

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COMPATIBILITY

Fits Kubota V2203 — 0.50mm Oversize (87.50mm)

✓Kubota V2203 Diesel Engine
✓Kubota V2203 IDI / V2203 DI Variants
✓Bobcat 753 / 763 / 773 (after 0.50 overbore)
✓Bobcat S150 / S160 / S175 / S185 (after overbore)
✓Cylinder Bored to 87.50mm (0.50 over STD)
✓Pin Bore: 25mm
✓Includes: Piston + Pin + Ring Set + 2 Clips
✓OEM#: 16423-21910 · 17331-21090

⚠ Only use if your cylinders have been bored 0.50mm oversize. For standard bore, see SKU 2435-2442.

WHAT'S INCLUDED

Complete Piston Kit for 1 Cylinder

⚪
Piston
87.50mm (0.50 oversize)
📍
Piston Pin
25mm pin bore
⭕
Ring Set
Top + 2nd + Oil control rings
📎
2 × Retaining Clips
Lock the wrist pin in place
🛡️
30-Day Warranty
Arko quality guarantee
🚚
Same-Day Shipping
Order before 3 PM PST

WHEN TO REPLACE

When to Use This 0.50 Oversize Kit

Order this 0.50 oversize kit when:

⚠️Cylinder was bored 0.50mm oversize at a machine shop
⚠️Old piston has scoring, cracking, or melting damage
⚠️STD bore is past wear limit and needs to be cleaned up
⚠️Excessive piston-to-bore clearance (slap noise)
⚠️Engine rebuild going to a 0.50 overbore
⚠️Hydrolock or thermal-event damage replaced one piston

CUSTOMER REVIEWS

Trusted by Tractor Owners Nationwide

★★★★★ 4.6 out of 5 stars (927 reviews)
★★★★★
Perfect Fit
VERIFIED REVIEW

"Exact replacement for my Ford 4600. Installed in 20 minutes and tractor fired right up. Quality part at a great price. Will order from Arko again."

Mike T. • Verified Buyer • March 2026
★★★★★
Fast Shipping & Great Support
VERIFIED REVIEW

"Ordered Monday morning, received Wednesday. Called with a fitment question and spoke to someone who actually knew tractors. Part works perfectly on my Kubota."

James R. • Verified Buyer • March 2026
★★★★★
Better Than OEM
VERIFIED REVIEW

"This gasket kit saved me hundreds compared to dealer pricing. Quality is excellent, everything fit perfectly. No leaks after 50+ hours of operation."

David L. • Verified Buyer • February 2026

FAQ

Common Questions

How do I know if I need 0.50 oversize vs STD?

Measure your cylinder bore at the top, middle, and bottom with a bore gauge. If the bore is at or near 87.00mm (STD) and within Kubota's wear limit, order STD pistons. If the bore has been bored to 87.50mm at a machine shop (or your existing piston is stamped with "0.50" or "STD+0.50"), order this 0.50 oversize kit. If you're undecided, take the block to a machine shop — they'll measure and tell you which size you need.

How many of these kits do I need for a complete V2203 rebuild?

The V2203 is a 4-cylinder engine. Order 4 kits — one per cylinder. Mixing sizes (one oversize, three STD) is not recommended — your bores need to be uniformly machined, and all 4 pistons should match.

Does this come with rod bearings or wrist pin bushings?

No — rod bearings and bushings are separate parts. For a complete bottom-end rebuild, also order our Kubota main + rod bearing set (SKU 21024K) and new rod bolts. The wrist pin bushing rides in the connecting rod, not the piston — if your rods are in good shape, they don't need new bushings.

What's your return policy

We offer free returns within 30 days if the part doesn't fit or you're not satisfied. Parts must be unused and in original packaging.

Do you offer technical support?

Yes. Call (818) 261-3896 and we'll help you confirm fitment, answer installation questions, or troubleshoot issues.

How long does shipping take?

Orders ship same-day if placed before 3 PM EST. Standard delivery is 3-5 business days.

Rebuild Your V2203 to 0.50 Oversize — Ships Same Day

Complete piston + ring kit (piston + pin + rings + 2 clips) for Kubota V2203 — 0.50mm oversize at 87.50mm. OEM 16423-21910 and 17331-21090. Per cylinder. Order 4 for a full rebuild. Free shipping. 30-day returns.

ADD TO CART — $47.99
📞Questions?(818) 261-3896