RK Tractors RK37S Attachments & Implements

The RK Tractors RK37S is a 37.4 HP compact tractor producing 30.2 PTO HP through a 540 RPM PTO, with a Category I 3-point hitch hitch and a 3-point lift capacity of 1558 lb. Below: every attachment in our database checked against these specs.

Engine horsepower: 37.4 HP
PTO horsepower: 30.2 HP
PTO speeds: 540 RPM
Hitch: Category I 3-point hitch (Category I)
3-point lift capacity: 1558 lb
Class: Compact
Series: RK Series
Front loader: Not fitted

On the lift figure: TYM T394 platform (RK37 is a TYM rebadge). TYM publishes 2,639 lb at ball ends and 1,558 lb at 24 in. behind link ends; 1,558 is the 24-in. figure matching this field's convention.

Attachment fit for the RK37S is decided by four of these figures: hitch category, PTO horsepower, PTO shaft speed, and implement weight against the 1558 lb three-point lift rating. Implements rated for sub-compact tractors also fit, with capacity to spare. Front-mount attachments require a loader, which this record does not list. Every figure above is read from manufacturer documentation, linked on the page.

RK Tractors RK37S attachments by task

Checked against every attachment in the database, the RK Tractors RK37S returns 159 full matches, 0 compatible with notes, 26 front-loader attachments awaiting loader specs, and 4 ruled out. Full matches by task: Box blade (23), Rotary cutter (19), Rotary tiller (19), Rear blade (18), Finish mower (17), Landscape rake (16), Post hole digger (14), Flail mower (14), Snow blower (12), Land plane (5), Bale spear (2).

What fits the RK Tractors RK37S (159)

Showing 8 of 159.

Land Pride RCR1248 — Rotary cutter · 15+ HP · 385 lbs
King Kutter RTG-60 — Rotary tiller · 20+ HP · 380 lbs
Land Pride BB0548 — Box blade · 320 lbs
CountyLine PHD Cat I — Post hole digger · 12+ HP · 195 lbs
Woods RD72 — Rotary cutter · 25+ HP · 580 lbs
Land Pride RCR1260 — Rotary cutter · 20+ HP · 496 lbs
Land Pride RCR1272 — Rotary cutter · 25+ HP · 568 lbs
Land Pride RTA1250 — Rotary tiller · 15+ HP · 421 lbs

Compatible with notes (0)

No partial matches.

Front-loader attachments (loader specs not on file) (26)

Showing 8 of 26.

Land Pride RG1060 — Grapple · 375 lbs. This is a front-loader attachment, so it requires a front loader rather than the 3-point hitch. We don't have loader specifications on file for the RK Tractors RK37S, so this pairing has not been evaluated for lift capacity or quick-attach fit. Confirm the tractor's loader model and its usable capacity before purchasing. Loader lift capacity for the RK Tractors RK37S is not on file, so this 375 lb attachment has not been checked against a loader rating. This is a compact tractor; confirm loader availability and capacity with your dealer.
Land Pride RG1072 — Grapple · 408 lbs. This is a front-loader attachment, so it requires a front loader rather than the 3-point hitch. We don't have loader specifications on file for the RK Tractors RK37S, so this pairing has not been evaluated for lift capacity or quick-attach fit. Confirm the tractor's loader model and its usable capacity before purchasing. Loader lift capacity for the RK Tractors RK37S is not on file, so this 408 lb attachment has not been checked against a loader rating. This is a compact tractor; confirm loader availability and capacity with your dealer.
Titan Attachments Economy Grapple 48" — Grapple · 390 lbs. This is a front-loader attachment, so it requires a front loader rather than the 3-point hitch. We don't have loader specifications on file for the RK Tractors RK37S, so this pairing has not been evaluated for lift capacity or quick-attach fit. Confirm the tractor's loader model and its usable capacity before purchasing. Loader lift capacity for the RK Tractors RK37S is not on file, so this 390 lb attachment has not been checked against a loader rating. This is a compact tractor; confirm loader availability and capacity with your dealer.
Titan Attachments Economy Grapple 60" — Grapple · 470 lbs. This is a front-loader attachment, so it requires a front loader rather than the 3-point hitch. We don't have loader specifications on file for the RK Tractors RK37S, so this pairing has not been evaluated for lift capacity or quick-attach fit. Confirm the tractor's loader model and its usable capacity before purchasing. Loader lift capacity for the RK Tractors RK37S is not on file, so this 470 lb attachment has not been checked against a loader rating. This is a compact tractor; confirm loader availability and capacity with your dealer.
Titan Attachments Economy Grapple 72" — Grapple · 510 lbs. This is a front-loader attachment, so it requires a front loader rather than the 3-point hitch. We don't have loader specifications on file for the RK Tractors RK37S, so this pairing has not been evaluated for lift capacity or quick-attach fit. Confirm the tractor's loader model and its usable capacity before purchasing. Loader lift capacity for the RK Tractors RK37S is not on file, so this 510 lb attachment has not been checked against a loader rating. This is a compact tractor; confirm loader availability and capacity with your dealer.
Titan Attachments Grade 50 Standard Series Root Grapple Bucket 60" SSQA — Grapple · 617 lbs. This is a front-loader attachment, so it requires a front loader rather than the 3-point hitch. We don't have loader specifications on file for the RK Tractors RK37S, so this pairing has not been evaluated for lift capacity or quick-attach fit. Confirm the tractor's loader model and its usable capacity before purchasing. Loader lift capacity for the RK Tractors RK37S is not on file, so this 617 lb attachment has not been checked against a loader rating. This is a compact tractor; confirm loader availability and capacity with your dealer.
Titan Attachments Standard Series Root Grapple Rake 60" SSQA — Grapple · 650 lbs. This is a front-loader attachment, so it requires a front loader rather than the 3-point hitch. We don't have loader specifications on file for the RK Tractors RK37S, so this pairing has not been evaluated for lift capacity or quick-attach fit. Confirm the tractor's loader model and its usable capacity before purchasing. Loader lift capacity for the RK Tractors RK37S is not on file, so this 650 lb attachment has not been checked against a loader rating. This is a compact tractor; confirm loader availability and capacity with your dealer.
Titan Attachments Standard Grapple 72" SSQA — Grapple · 660 lbs. This is a front-loader attachment, so it requires a front loader rather than the 3-point hitch. We don't have loader specifications on file for the RK Tractors RK37S, so this pairing has not been evaluated for lift capacity or quick-attach fit. Confirm the tractor's loader model and its usable capacity before purchasing. Loader lift capacity for the RK Tractors RK37S is not on file, so this 660 lb attachment has not been checked against a loader rating. This is a compact tractor; confirm loader availability and capacity with your dealer.

Does not fit the RK37S (4)

Frontier RT1157 — Rotary tiller · 25+ HP · 480 lbs. Tractor hitch Category I is not compatible with required Category II.
Frontier PHD395 — Post hole digger · 35+ HP · 245 lbs. Tractor hitch Category I is not compatible with required Category II. Tractor PTO HP (30.2) is more than 10% below the implement minimum (35).
Bush Hog BH217-3 — Rotary cutter · 50+ HP · 1150 lbs. Tractor PTO HP (30.2) is more than 10% below the implement minimum (50).
Woods SW84 — Snow blower · 35+ HP · 920 lbs. Tractor hitch Category I is not compatible with required Category II. Tractor PTO HP (30.2) is more than 10% below the implement minimum (35).

Frequently asked questions

What is the PTO horsepower of the RK Tractors RK37S?

The RK Tractors RK37S produces 30.2 PTO horsepower (engine HP: 37.4), per TYM T394 factory spec table, corroborated across four independent TYM dealer spec sheets (2026-07-16). Platform match to RK37 confirmed on engine model (Yanmar 3TNV88-CR), 37.4 engine HP, 30.2 PTO HP, 126 in. length, 53.5 in. width, 12.8 in. ground clearance..

What 3-point hitch category does the RK Tractors RK37S use?

The RK Tractors RK37S uses Category I 3-point hitch.

What is the lift capacity of the RK Tractors RK37S?

The RK Tractors RK37S has a 3-point lift capacity of 1558 lbs at 24 inches behind the lift points.

What rotary cutters fit the RK Tractors RK37S?

Verified compatible rotary cutters include: Land Pride RCR1248, Woods RD72, Land Pride RCR1260, Land Pride RCR1272, Frontier RC2048, Frontier RC2060, Frontier RC2072, Woods RD60, King Kutter L-60-40-P, King Kutter L-72-60-P, CountyLine RC5CL, CountyLine RC6CL, Bush Hog BH5, Bush Hog BH6, Bush Hog BH215-3, Bush Hog BH216-3, Bush Hog BH110-56, Rhino SE5, Rhino SE6.

Will a Frontier RT1157 fit the RK Tractors RK37S?

No. The Frontier RT1157 is incompatible with the RK37S. Tractor hitch Category I is not compatible with required Category II.