If you've ever looked up the part numbers for the sway block and wear plate components on your John Deere three-point hitch, you've probably noticed the system uses different parts depending on which tractor you have. There are two distinct generations of factory hardware, and the cross-references aren't intuitive. This article lays out exactly what each part number is, what tractor it fits, and what replaces it in the RollerGlide 3-Point System.
The factory parts at a glance
| OEM Part Number | Description | Fits | RollerGlide Replacement |
|---|---|---|---|
R210605 | Sway Block Wear Plate, RH | Older 8R wheeled, 8030, 8RT lineage | Classic or Trac (depending on tractor) |
R210604 | Sway Block Wear Plate, LH | Older 8R wheeled, 8030, 8RT lineage | Classic or Trac (depending on tractor) |
R207665 | Sway Block, RH | Older 8R wheeled, 8030, 8RT lineage | Classic or Trac (depending on tractor) |
R207666 | Sway Block, LH | Older 8R wheeled, 8030, 8RT lineage | Classic or Trac (depending on tractor) |
R309701 | Sway Block, RH | Current 8R wheeled, 8RX, 7R | Precision |
R309702 | Sway Block, LH | Current 8R wheeled, 8RX, 7R | Precision |
R274328 | Sway Block Wear Plate, RH | Current 8R wheeled, 8RX, 7R | Precision |
R274326 | Sway Block Wear Plate, LH | Current 8R wheeled, 8RX, 7R | Precision |
The two distinct generations
Older generation: R210605 / R210604 wear plates with R207665 / R207666 sway blocks
This is the original John Deere hitch hardware used through the Final Tier 4 transition (roughly 2014). If your tractor was built before the Final Tier 4 update, your hitch likely uses this part set. Specifically:
- 8030 Series wheeled — 8130, 8230, 8330, 8430, 8530
- 8030T Series (track) — 8230T, 8330T, 8430T
- 8R Series first generation (wheeled) — 8225R, 8235R, 8245R, 8260R, 8270R, 8285R, 8295R, 8310R, 8320R, 8335R, 8345R, 8360R
- 8RT Track Series first generation — 8295RT, 8310RT, 8320RT, 8335RT, 8345RT, 8360RT, 8370RT
- 8RT current generation — 8RT 310, 8RT 340, 8RT 370, 8RT 410
For wheeled tractors in this group, the RollerGlide replacement is Classic. For all 8RT track tractors in this group (including the current-generation 8RT 310-410), the replacement is Trac, which uses the same precision assembly as the Classic but is configured for the hitch geometry of a tracked tractor. (For the earlier John Deere 8000 Series wheeled — 8100, 8200, 8300, 8400 — the correct variant is Heritage.)
Current generation: R309701 / R309702 sway blocks with R274328 / R274326 wear plates
From the Final Tier 4 update forward, John Deere transitioned the wheeled 8R lineup and introduced the 8RX (four-track) and the 7R with this newer sway block design. The bolt pattern is different from the older generation, so the parts are not interchangeable. Tractors using this set include:
- 8R current generation (wheeled) — 8R 230, 8R 250, 8R 280, 8R 310, 8R 340, 8R 370, 8R 410
- 8RX Four-Track Series — 8RX 310, 8RX 340, 8RX 370, 8RX 410
- 7R Series — 7210R, 7230R, 7250R, 7270R, 7290R, 7310R
All of these are covered by the RollerGlide Precision variant.
How to verify which set is on your tractor
If you're not sure which generation your tractor uses, the easiest method is to look at the existing sway block and wear plate. Three quick checks:
- Look at the bolt pattern. The older R207665 sway block uses a different bolt spacing than the newer R309701. If you have access to a parts diagram from a John Deere dealer, you can compare side by side.
- Check the part number stamped on the wear plate. Some wear plates have the part number cast or stamped directly. Pull one off if you have to.
- Send us a photo. If you'd rather not pull anything apart, take a clear photo of the sway block area on your tractor and email it to orders@truepointag.com. We can identify the variant from the bolt pattern in the photo and confirm which RollerGlide you need before you order.
Why the part number matters
Ordering the wrong RollerGlide variant means the brackets won't bolt to your hitch. The mounting holes simply don't line up between the two generations. Verifying the part number (or tractor model and year) before ordering protects you from a return shipment and an extra week of waiting. We list every supported tractor model on the fitment chart, but the OEM part-number lookup is the most precise way to confirm.
What RollerGlide actually replaces
For an order of any RollerGlide variant (Heritage, Classic, Precision, or Trac), you receive a complete bilateral kit: two RollerGlide bracket assemblies (RH and LH), grade 8 hardware pre-installed with nylock nuts at the correct torque, and tractor-specific wear plates. The kit replaces the OEM sway blocks AND the OEM wear plates — you do not need to source any factory parts to complete the install.
Need help confirming your variant?
Send us a photo of your sway block area and we'll confirm the right variant (Heritage, Classic, Precision, or Trac) before you order. Same-day response on weekdays.
Email Us a Photo →A note on John Deere parts availability
OEM replacement plates and sway blocks are still available through John Deere dealers, and they are an acceptable short-term fix if you only need to get through one more season. For any tractor you plan to keep more than two more years, the RollerGlide system is more economical end-to-end — it's a one-time purchase versus repeated replacements, and it restores precision instead of just buying time.