THE ACREAGE EQUIPMENT FIELD GUIDE
Same engine, different tractor: why engine horsepower does not predict PTO power or lift
Manufacturers often fit one engine to several tractors. The engine figure stays the same, but PTO horsepower, lift capacity and width change with the transmission, frame and hitch. Screen attachments on the figures for the exact model, never on the engine alone.
By Acreage Equipment · Reviewed November 8, 2026 · Specification research, not a field test
THE DECISION IN NUMBERS
TYM tractors with the T2300N2 engine
Values quoted from TYM’s 2026 Series 3 catalog (p28) and 2025 Series 4 catalog (pp22, 24), reviewed November 8, 2026. Series 4 digits were read from rendered pages. The 4815 and 4820 are listed here for comparison only and are not profiled on this site.
Scroll the table sideways on smaller screens.
| Model | Engine / PTO hp | Transmission | Lift at 24 in. / at link ends | Overall width |
|---|---|---|---|---|
| TYM 4815 | 48 / 40 | Synchromesh or HST | 2,425 lb / 3,306 lb | 56.3 in. |
| TYM T474 | 48.3 / 35.9 | 12F/12R mechanical | 1,764 lb (673 kg printed) / 2,689.6 lb | 54.5 in. |
| TYM 4820 | 48 / 38.4 | Synchromesh or HST | 2,425 lb / 3,306 lb | 64.9 in. |
| TYM T494 | 48.3 / 37.2 | 8F/8R synchro shuttle | 3,050.6 lb / 3,822 lb | 63.8 in. |
Sources for this decision table (2)
- TYM Catalog 2026 – Series 3 (PDF modified January 13, 2026) ↗p20 T474 key specifications; p28 Specification Guide (4815, 4815C, T474, T474C)
- TYM Catalog 2025 – Series 4 (PDF modified August 14, 2025) ↗p11 T494 and p13 T574 key specifications; p22 and p24 Specification Guide (3620, T454, 4820, 4820C, T494, T574)
Four TYM tractors, one engine
TYM lists its naturally aspirated T2300N2 engine at 48 or 48.3 hp in four current tractors: the 4815 and T474 in the 2026 Series 3 catalog, and the 4820 and T494 in the 2025 Series 4 catalog. Their PTO figures are 40, 35.9, 38.4 and 37.2 hp. Lift at 24 inches is 2,425 lb on the 4815 and 4820, 1,764 lb on the T474 and 3,050.6 lb on the T494.
Why PTO power changes
PTO horsepower is measured at the PTO shaft, after the transmission. Different transmissions lose different amounts: the 4815 and 4820 list HST and synchromesh versions, the T474 a mechanical shuttle, the T494 an 8F/8R synchro shuttle. TYM publishes one PTO figure per model, so the catalog does not show how much each transmission takes. A 4.1-hp spread from one engine is enough to cross a 35- or 40-hp attachment limit.
Why lift changes
Lift depends on the hitch cylinders, linkage geometry and frame, not the engine. The T474 is 54.5 inches wide with a 69.7-inch wheelbase; the T494 is 63.8 inches with 76.2 inches. Its 24-inch lift is about 1,300 lb higher. Two tractors with the same engine can differ by more than the weight of a mid-size chipper.
Engine figures still matter for engine-rated attachments
Wallenstein and Farmry’s WCAP5 rate in engine horsepower. All four TYM tractors are over WCAP5’s 45 and under BX72S’s 50, so they screen the same way on those products. For PTO-rated products, the same engine gives different answers: WC88’s 35-hp minimum is cleared by all four, but by 0.9 hp on the T474 and 5.0 on the 4815.
Take these questions with you.
- What PTO horsepower does the manufacturer list for my exact model and transmission, not just the engine?
- What is the lift at 24 inches for my model, and how does it compare with a sister model with the same engine?
- Does the attachment rate in engine or PTO horsepower?
- Is the engine figure gross or net, and does the attachment maker assume the same standard?
Keep these questions with your exact tractor and attachment details.
Use these questions in my seller briefFOLLOW THE NUMBERS
Sources & documentation
Research record reviewed November 8, 2026. Confirm the current manual and the exact revision supplied with your machine.
- TYM Catalog 2026 – Series 3 (PDF modified January 13, 2026)p20 T474 key specifications; p28 Specification Guide (4815, 4815C, T474, T474C)
- TYM Catalog 2025 – Series 4 (PDF modified August 14, 2025)p11 T494 and p13 T574 key specifications; p22 and p24 Specification Guide (3620, T454, 4820, 4820C, T494, T574)
- TYM North America T474 model pageOverview copy (Hydro-Max HST); Technical Specification table
- TYM North America T494 model pageFeature callouts; Technical Specification table
- Woodland Mills WC88 official U.S. pageCapacity, including full-diameter/full-speed condition; price
- Farmry WCAP5 operator manual, Rev 1.5Printed p19: Engine HP Range 15–45, chipping capacity and 5 × 9-in. opening; p20: mounting, discharge, net weight with PTO shaft
- Wallenstein BX72S official U.S. pageEngine HP Range; Mounting System (Cat I and II); Total Weight; Discharge Chute Height
- Farmry official product specifications
- Woodland Mills official U.S. product page — Capacity and hydraulic infeed sections; current price
- Woodland Mills WC68 operator manual, Rev C, 28-May-2024 — Printed p9 product/shipping weights; p12 Cat 1 and PTO range; operation/setup sections
- Current linked WC88 operator manual, Rev C, 22-Aug-2022
- BX72S official support page — current operator/setup documents
- BX-S operator manual Z97085_En, Rev Jan-2025 — pp14,18–22,26,28,30,40
- PTO shaft instructions Z97844_En, Rev Aug-2024 — tractor/quick-hitch sizing
