This is a A-13769 Comp, Sanden Style (8390) w/ Clutch (2A - 5.25" pulley, 12 volt, SD508 series) PN: 13769Main Description As Following : A-13769 Comp, Sanden Style (8390) w/ Clutch (2A - 5.25" pulley, 12 volt, SD508 series) P.N: 13769 Fitting Description: Vert. Fl. #8/10Pulley Diameter: 5.250"Pulley Grooves: 2ASeries Number: SD508Volt: 12 Stocked As: A-500-244 Found in Section & Models : Air Conditioning Parts > Compressor, Steiger TRACTOR: BC SERIES I/II (Early Series II w/service ports), Steiger TRACTOR: CA-INDUSTRIAL SERIES (Flare Style - w/service ports (Early Styl, Steiger TRACTOR: CM SERIES IV (Flare Style - w/service ports (Early Style)), Steiger TRACTOR: COUGAR SERIES I/II (w/ Cougar I - Early Style), Steiger TRACTOR: CU-INDUSTRIAL SERIES (Flare Style - w/service ports (Early Styl, Steiger TRACTOR: KM SERIES IV (Flare Style - w/service ports (Early Style)), Steiger TRACTOR: SM SERIES IV (Flare Style - w/service ports (Early Style)), Steiger TRACTOR: ST SERIES III (Early style w/service ports), Steiger TRACTOR: SWC SERIES I/II (Early Series II w/service ports), Steiger TRACTOR: TIGER SERIES I/II (Series I w/service ports early style), Steiger TRACTOR: WC SERIES I/II (Early Series II w/service ports) Associated Items : A-520-6900, A-520-6901, A-520-6902, A-520-6910 Also A-SI-O-CMKMSIV, A-SI-P-CMKMSM, A-SI-P-CMKMSM, A-SI-P-CMKMSM, A-SI-P-COUGARI And : Fitting Description: Vert. Fl. #8/10 Pulley Diameter: 5.250" Pulley Grooves: 2A Series Number: SD508 Volt: 12