Description
Overview:
This is a genuine Husqvarna spring for ride‐on mowers, engineered to restore and maintain correct tension in linkages and controls. It is a steel coil tension spring with hooked ends, finished in a metallic silver. The part is designed for Husqvarna Rider and Proflex machines, including PR14 and PR17, and is identified by OEM/MPN 506665601 (OEM No. 506 66 56 01). Typical uses include deck engagement and return or idler mechanisms where stable tension is essential for smooth, safe operation. Key dimensions are 210 mm (8.27 in) overall length, 17 mm (0.67 in) width across the coil, and 2.5 mm (0.10 in) wire thickness. As a genuine part, it offers fit and function matched to the original specification.
Key Features:
- Genuine Husqvarna part for reliable fit and performance on listed Rider and Proflex models
- Robust spring steel construction for consistent tension and long service life
- Dimensions: length 210 mm (8.27 in), width 17 mm (0.67 in), wire 2.5 mm (0.10 in)
- Helps restore smooth deck engagement and precise return action in linkages
- Direct replacement for OEM No. 506 66 56 01 / MPN 506665601
- Stable spring rate helps prevent belt slip and erratic operation
- Straightforward to fit with basic hand tools in routine maintenance
- Suitable for front‐mounted deck Rider machines and articulated Husqvarna mowers
- Durable metallic finish for everyday outdoor use
- Supports safe operation by maintaining correct system tension
Typical Applications:
Used to replace stretched, fatigued, or broken springs in cutter deck engagement, drive belt idler arms, brake/park brake linkages, and pedal or lever return mechanisms on Husqvarna ride‐on mowers. Suitable for domestic large‐garden use, estates, groundskeeping, and commercial maintenance where reliable mower control and belt tension are required.
Also known as:
Tension spring, extension spring, return spring, idler arm spring, deck belt spring, linkage spring, coil spring, Husqvarna Rider spring, mower linkage spring.
Fits Models:
PR14, PR15, PR17, PR17 AWD, PR18, PR18 AWD, PROFLEX1200, PROFLEX18, PROFLEX20, PROFLEX21, PROFLEX21 AWD, R13C5, R213C, R214T, R214T AWD, R214TC, R215TX, R216, R216 AWD, R216T AWD, R316T, R316T AWD, R316TS AWD, R316TSX AWD, R316TX, R316TX AWD, R316TXS AWD, R318, R318X, R320 AWD, R320X AWD, R418, R418 TS AWD, R418TS, R422TS AWD, R422TS, RC318T, RC320TS AWD, RIDER 1030, RIDER 11, RIDER 11 BIO, RIDER 11 C, RIDER 11 R, RIDER 1200, RIDER 13, RIDER 13 AWD, RIDER 13 BIO, RIDER 13 C, RIDER 13 R, RIDER 15 C, RIDER 15 T, RIDER 15 T AWD, RIDER 155, RIDER 155 AWD, RIDER 15V2, RIDER 15V2 AWD, RIDER 16, RIDER 16 C, RIDER 16 C AWD, RIDER 16 H, RIDER 175, RIDER 175 AWD, RIDER 18, RIDER 18 AWD, RIDER 850, RIDER 850 HST, RIDER 970, RIDER 970 HST, RIDER PRO 18
Alternate Part Numbers:
506 66 56-01, 506665601
Product Specifications
| L&S Part No. | 506 66 56 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 506665601 |
| Unit of Sale | 1 |
| Applications | PR14, PR14 Rider, PR15, PR15 Rider, PR17, PR17 AWD, PR17 AWD Rider, PR17 Rider, PR17AWD, PR18, PR18 AWD, PR18 AWD Rider, PR18 Rider, PR18AWD, Proflex 1200, Proflex 1200 Rider, Proflex 18, Proflex 18 Rider, Proflex 20, Proflex 20 Rider, Proflex 21, Proflex 21 AWD, Proflex 21 AWD Rider, Proflex 21 Rider, Proflex 21AWD, R13 C5 Rider, R13C5, R213 C Rider, R213C, R214 T AWD Rider, R214 T Rider, R214 TC Rider, R214T, R214T AWD, R214TAWD, R214TC, R215 TX Rider, R215TX, R216, R216 AWD, R216 AWD Rider, R216 Rider, R216 T AWD Rider, R216AWD, R216T AWD, R216TAWD, R316 T AWD Rider, R316 T Rider, R316 TX AWD Rider, R316 TX Rider, R316 TXs AWD Rider, R316 Ts AWD Rider, R316 TsX AWD Rider, R316T, R316T AWD, R316TAWD, R316TS AWD, R316TSAWD, R316TSX AWD, R316TSXAWD, R316TX, R316TX AWD, R316TXAWD, R316TXS AWD, R316TXSAWD, R318, R318 Rider, R318 X Rider, R318X, R320 AWD, R320 AWD Rider, R320 X AWD Rider, R320AWD, R320X AWD, R320XAWD, R418, R418 TS AWD, R418 TS AWD Rider, R418 Ts Rider, R418TS, R418TSAWD, R422 Ts AWD Rider, R422 Ts Rider, R422TS, R422TS AWD, R422TSAWD, RC 318T Rider, RC 320Ts AWD Rider, RC318T, RC320TS AWD, RC320TSAWD, RIDER11, RIDER13, RIDER16, RIDER18, Rider 1030, Rider 11, Rider 11 BIO, Rider 11 C, Rider 11 R, Rider 11BIO, Rider 11C, Rider 11R, Rider 1200, Rider 13, Rider 13 AWD, Rider 13 BIO, Rider 13 C, Rider 13 R, Rider 13AWD, Rider 13BIO, Rider 13C, Rider 13R, Rider 15 C, Rider 15 T, Rider 15 T AWD, Rider 155, Rider 155 AWD, Rider 155AWD, Rider 15C, Rider 15T, Rider 15TAWD, Rider 15V2, Rider 15V2 AWD, Rider 15V2AWD, Rider 16, Rider 16 C, Rider 16 C AWD, Rider 16 H, Rider 16C, Rider 16CAWD, Rider 16H, Rider 175, Rider 175 AWD, Rider 175AWD, Rider 18, Rider 18 AWD, Rider 18AWD, Rider 850, Rider 850 HST, Rider 850HST, Rider 970, Rider 970 HST, Rider 970HST, Rider PRO 18, Rider PRO18 |
| Machine Type | Lawn Tractors, Mowers |
| Fits Brands | Husqvarna |
| Fits Models | PR14 Rider | PR15 Rider | PR17 Rider | PR17 AWD Rider | PR18 Rider | PR18 AWD Rider | PROFLEX 1200 Rider | PROFLEX 18 Rider | PROFLEX 20 Rider | PROFLEX 21 Rider | PROFLEX 21 AWD Rider | R13 C5 Rider | R213 C Rider | R214 T Rider | R214 T AWD Rider | R214 TC Rider | R215 TX Rider | R216 Rider | R216 AWD Rider | R216 T AWD Rider | R316 T Rider | R316 T AWD Rider | R316 Ts AWD Rider | R316 TsX AWD Rider | R316 TX Rider | R316 TX AWD Rider | R316 TXs AWD Rider | R318 Rider | R318 X Rider | R320 AWD Rider | R320 X AWD Rider | R418 Ts Rider | R418 TS AWD Rider | R422 Ts Rider | R422 Ts AWD Rider | RC 318T Rider | RC 320Ts AWD Rider | RIDER 1030 | RIDER 11 | RIDER 11 BIO | RIDER 11 C | RIDER 11 R | RIDER 1200 | RIDER 13 | RIDER 13 AWD | RIDER 13 BIO | RIDER 13 C | RIDER 13 R | RIDER 15 C | RIDER 15 T | RIDER 15 T AWD | RIDER 155 | RIDER 155 AWD | RIDER 15V2 | RIDER 15V2 AWD | RIDER 16 | RIDER 16 C | RIDER 16 C AWD | RIDER 16 H | RIDER 175 | RIDER 175 AWD | RIDER 18 | RIDER 18 AWD | RIDER 850 | RIDER 850 HST | RIDER 970 | RIDER 970 HST | RIDER PRO 18 |
