1988 MerCruiser Stern Drive Models Where can I find my serial number? 2.5L [ALPHA] 425S000AS 3.0L [ALPHA] 430S000AS 430S1008R 430S100AR 430S100AS 3.7L [ALPHA] 437S000AS 437S100AS 3.7LX [ALPHA] 437L100AS 350 [ALPHA] 4350100AS 4.3L [ALPHA] 443S1008R 443S100AR 443S100AS 4.3LX [ALPHA] 443L1008R 443L100AR 443L100AS 454 [ALPHA] 4454100AR 4454100AS 454 [BRAVO] 4454110AS 5.0L [ALPHA] 450S100AS 5.0LX [ALPHA] 450L100AS 5.7L [ALPHA] 457S1008R 457S100AR 457S100AS 457X100AR 5.7L [BRAVO] 457S110AS 5.7L [DS EXT] 457S120AS 530D [BRAVO] 4530110AD 636D [BRAVO] 4636110AD 7.4L [ALPHA] 4330000AS 4330100AS 474X100AR 7.4L [BRAVO] 474H110AR 474S110AS ALPHA 6010000AR 6010000AS ALPHA [1.32:1] 5010132AR 5010132AS ALPHA [1.50:1] 5010150AR 5010150AS ALPHA [1.65:1] 5010165AR 5010165AS ALPHA [1.84:1] 5010184AR 5010184AS ALPHA [1.98:1] 5010198AR 5010198AS BRAVO 60200008R 6020000AR 6020000AS BRAVO 1 [1.50:1] 5120150AR 5120150AS BRAVO 2 [2.00:1] 5220200AS TR [1.50:1] 5310150AS TR [2.00:1] 5300200AS 5310200AS TR/TRS/2 6030000AS 6030100AS TRS [1.50:1] 5400150AS 5410150AS
