Shop with confidence
-
4.8 Rating
-
Free Shipping**
Parts/Accessories Orders over $100
**Exceptions apply for oversize or overweight packaging
-
Genuine Parts
Designed to fit your model
"Special orders" typically ship out 3-5 days from date of order. You will be contacted via email regarding longer delays.
Toro Hydrostatic System Fan & Pulley Service Kit
Genuine Toro OEM Replacement Parts Kit: 121-5729
Maintain optimal operating temperatures and ensure smooth power delivery within your mower's transmission drive line with this Genuine Toro Hydro Fan & Pulley Kit. This factory-authorized original equipment manufacturer (OEM) service bundle is explicitly engineered to replace slipping, stripped, or heat-damaged cooling fans and drive pulleys on residential zero-turn hydro transaxles. Keeping your hydraulic fluid cool protects internal seals, prevents drive slippage, and extends the overall life of your mower's hydro system.
- 1x Transmission Cooling Fan (53811): Heavy-duty 7.0-inch multi-blade fan
- 1x Pulley Disc (53804): Stamped steel drive pulley plate
- 1x Pulley Hub (53812): Splined matching connection hub
- 1x Flange Washer (51523): Specialty .53X flat retaining washer
- 1x Lock Nut (44133): Heavy-duty 1/2-20 H hex spindle nut
This kit is specifically tailored to service individual hydraulic drive transaxles manufactured by Hydro-Gear for 42-inch Toro TimeCutter, Toro Precision, and Exmark Quest zero-turn models. Because transaxle spline counts and fan offsets vary by deck width and production year, please verify your machine's exact model number below before ordering.
Equipment Compatibility Guide
Cross-reference the engineering or model code stamped on your equipment's factory data sticker to confirm a correct fit:
Fits Toro Models:
725057016 (MZ16H)
725057026 (MZ18H)
725057036 (MZ19H)
725058006 (MZ18H)
725058016 (MZ19H ZTR)
725058026 (MZ16H ZTR)
725058036 (MZ17H ZTR)
74301 (14-38Z TimeCutter)
74325 (16-42Z TimeCutter)
74327 (TimeCutter Z420)
74330 (TimeCutter Z420)
74350 (17-42Z TimeCutter)
74351 (18-44Z TimeCutter)
74352 (TimeCutter Z480)
74353 (TimeCutter Z480)
74385 (TimeCutter ZS 3200)
74386 (TimeCutter ZS 4200)
74387 (TimeCutter ZS 5000)
74388 (TimeCutter ZS 3200S)
74389 (TimeCutter ZS 4200S)
74390 (TimeCutter ZS 4200TF)
74401 (17-44ZX TimeCutter)
74402 (14-38Z TimeCutter)
74403 (TimeCutter Z420)
74405 (18-52ZX TimeCutter)
74405FR (18-52ZX)
74406 (TimeCutter ZX440)
74407 (TimeCutter ZX525)
74419 (TimeCutter Z380)
74420 (TimeCutter Z420)
74425 (TimeCutter Z530)
74432 (TimeCutter ZD380)
74433 (TimeCutter ZD420)
74434 (TimeCutter ZD530)
74437 (TimeCutter ZD420T)
74501 (Z16-44 TimeCutter)
74502 (17-44ZX TimeCutter)
74560 (DH 140 Tractor)
74601 (Z17-44 TimeCutter)
74602 (18-44ZX TimeCutter)
74603 (TimeCutter ZX440)
74616 (TimeCutter SS 4216)
74620 (TimeCutter SS 3200)
74621 (TimeCutter SS 3200)
74622 (TimeCutter SS 4200)
74623 (TimeCutter SS 4200)
74624 (TimeCutter SS 4235)
74625 (TimeCutter SS 4235)
74626 (TimeCutter SS 4260)
74627 (TimeCutter SS 4235)
74628 (TimeCutter SS 4235)
74629 (TimeCutter SS 3216)
74630 (TimeCutter SS 5000)
74632 (TimeCutter SS 5060)
74633 (TimeCutter SS 4235)
74636 (TimeCutter SS 4260)
74640 (TimeCutter MX 4260)
74642 (TimeCutter MX 4260)
74650 (TimeCutter ZS 3200S)
74655 (TimeCutter ZS 4200S)
74656 (TimeCutter ZS 4200T)
74657 (TimeCutter ZS 4200T)
74665 (TimeCutter ZS 4200S)
74667 (TimeCutter ZS 4200T)
74670 (TimeCutter SW 3200)
74675 (TimeCutter SW 4200)
74676 (TimeCutter SW 4200)
74682 (TimeCutter ZS 3200S)
74684 (TimeCutter ZS 4200S)
74685 (TimeCutter ZS 4200S)
74686 (TimeCutter ZS 4200T)
74687 (TimeCutter ZS 4200T)
74690 (TimeCutter MX 4275T)
74701 (Z17-52 TimeCutter)
74702 (18-52ZX TimeCutter)
74704 (TimeCutter ZX480)
74705 (TimeCutter SS 4200)
74706 (TimeCutter SS 4225)
74710 (TimeCutter SS 3225)
74710TA (TimeCutter SS 3225)
74711 (TimeCutter SS 4200)
74720 (TimeCutter SS 4200)
74721 (TimeCutter SS 4225)
74722 (TimeCutter SS 4225)
74723 (TimeCutter SS 4250)
74725 (TimeCutter SS 4200)
74726 (TimeCutter SS 4225)
74726TA (TimeCutter SS 4225)
74750 (TimeCutter MX 3450)
74760 (TimeCutter MX 4250)
74760TA (TimeCutter MX 4250)
74765 (TimeCutter MX 4200)
74766 (TimeCutter MX 4200)
74766TA (TimeCutter MX 4200)
74780 (TimeCutter SW 3200)
74781 (TimeCutter SW 3200)
74784 (TimeCutter SW 4200)
74785 (TimeCutter SW 4200)
74787 (TimeCutter SWX 4250)
74788 (TimeCutter SW 4200)
74801 (18-52ZX TimeCutter)
74802 (19-52ZX TimeCutter)
74806 (TimeCutter ZX525)
75740 (TimeCutter 4200)
75742 (TimeCutter 4225)
75742TA (TimeCutter 4225)
75745 (TimeCutter MX 4275)
75745TA (TimeCutter MX 4275)
75750 (TimeCutter 5000)
75751 (TimeCutter 5000)
81228 (Precision Z310)
81229 (Precision Z330 LX)
81230 (Precision Z320 H)
81235 (Precision Z310)
81240 (Precision Z330 LX)
81242 (Precision Z330 LX)
81243 (Precision Z330 LX)
81245 (Precision Z340 HLX)
81246 (Precision Z340 HLX)
81250 (Precision Z350 HLX)
94301 (MZ14H)
94327 (MZ16H ZTR)
94330 (MZ16H)
94351 (MZ18H)
94352 (MZ18H)
94603 (MZ17H ZTR)
94802 (MZ19H)
94806 (MZ19H ZTR)
Fits Exmark Models:
QSS725GKC42200 — Quest Front Steer
QT24KA501 — Quest Series
QTE452CEM42200 — Quest Drive Levers
QTE691KA501 — Quest Series
QTE708GEM42200 — Quest Drive Levers
QTE735KC421 — Quest Series
QTS691KA422 — Quest Series
QTS735KC422 — Quest Series
QZE600CKA42200 — Quest Drive Levers
QZE702GEM42200 — Quest Drive Levers
QZE708GEM42200 — Quest Drive Levers
| Weight | 0.44 lbs |
|---|
You may return parts and products for any reason within 30 days of the delivery date. All products must be unopened and returned in sellable condition. Return shipping including the purchase of shipping labels is the responsibility of the buyer. For your convenience, we offer the option to request a shipping label (the cost of shipping will be deducted from refund). The Mower Shop provides prepaid return shipping labels in the following cases: carrier damage, lost packages and incorrect items.
