{"id":836355,"date":"2026-10-31T18:53:53","date_gmt":"2026-10-31T18:53:53","guid":{"rendered":"https:\/\/tunerscapital.si\/product\/acl-race-ojnicni-lezaji-za-bmw-n55-n54-s55\/"},"modified":"2026-10-31T18:53:57","modified_gmt":"2026-10-31T18:53:57","slug":"acl-race-ojnicni-lezaji-za-bmw-n55-n54-s55","status":"publish","type":"product","link":"https:\/\/tunerscapital.eu\/en\/product\/acl-race-ojnicni-lezaji-za-bmw-n55-n54-s55\/","title":{"rendered":"ACL Race rod bearings for BMW N55 \/ N54 \/ S55"},"content":{"rendered":"<p>ACL Race rod bearings are trimetal engine bearings designed to withstand higher RPM conditions. Their combination of design, metallurgy and engineering is developed for the demands of high-performance engines.<\/p>\n<p>The set includes ACL Race Series rod bearings with features that improve heat transfer, bearing retention in the housing and the formation of hydrodynamic oil films.<\/p>\n<ul>\n<li><strong>High-strength overlay plate<\/strong> with reduced thickness for improved fatigue properties.<\/li>\n<li><strong>Hardened steel backs<\/strong> for improved support of the bearing lining and bearing retention in the housing.<\/li>\n<li><strong>Increased crush<\/strong> for improved bearing retention.<\/li>\n<li><strong>Elimination of flash plating on the back<\/strong> for improved heat transfer and increased grip between the bearings and housing.<\/li>\n<li><strong>Increased eccentricity<\/strong> to compensate for bore distortion at high RPM and assist in forming hydrodynamic oil films.<\/li>\n<li><strong>Tight, consistent wall tolerances<\/strong> to help maintain consistent clearances.<\/li>\n<\/ul>\n<p><strong>Suitable for:<\/strong> BMW 1 I (E81\/E82\/E87\/E88) \/ II (F20\/F21), BMW 2 I (F22\/F23\/F45\/F46\/F87), BMW 3 V (E90\/E91\/E92\/E93) \/ VI (F30\/F31\/F34\/F80), BMW 4 I (F32\/F33\/F36\/F82\/F83), BMW 5-Gran-Turismo I (F07), BMW 5 VI (F10\/F11), BMW 6 III (F06\/F12\/F13), BMW 7 V (F01\/F02\/F03\/F04), BMW M2 I (F22\/F23\/F45\/F46\/F87), BMW M3 VI (F30\/F31\/F34\/F80), BMW X3 II (F25), BMW X4 I (F26), BMW X5 II (E70) \/ III (F15\/F85), BMW X6 I (E71\/E72) \/ II (F16\/F86), BMW Z4 II (E89).<\/p>\n<p><strong>Engines:<\/strong> N55, N54, S55 (N55B30A, N54B30A, S55B30A, S55B30). Please check your vehicle\u2019s engine code (registration document or VIN) before ordering; if in doubt, contact us and we will check for you.<\/p>\n<h3>Sizes<\/h3>\n<p>STD is the standard size for an unground crankshaft. Undersizes (\u22120.25 mm, \u22120.50 mm \u2026) are for a reground crank, and \u201c+0.025 mm clearance\u201d (X) is for highly stressed engines. Your machine shop chooses the size after measuring.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ACL Race trimetal rod bearings for BMW N55, N54 and S55 with a high-strength overlay, hardened steel backs and improved bearing retention.<\/p>\n","protected":false},"featured_media":836361,"comment_status":"open","ping_status":"closed","template":"","meta":{"ep_exclude_from_search":false},"product_brand":[147343],"product_cat":[147260],"product_tag":[],"class_list":["post-836355","product","type-product","status-publish","has-post-thumbnail","tc_lang-en","tc_lang-hr","product_brand-acl","product_cat-lezaji-motorja","product_shipping_class-dostava-teza-do-2kg","pa_proizvajalec-acl","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-variable","has-default-attributes"],"_links":{"self":[{"href":"https:\/\/tunerscapital.eu\/en\/wp-json\/wp\/v2\/product\/836355","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tunerscapital.eu\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/tunerscapital.eu\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/tunerscapital.eu\/en\/wp-json\/wp\/v2\/comments?post=836355"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tunerscapital.eu\/en\/wp-json\/wp\/v2\/media\/836361"}],"wp:attachment":[{"href":"https:\/\/tunerscapital.eu\/en\/wp-json\/wp\/v2\/media?parent=836355"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/tunerscapital.eu\/en\/wp-json\/wp\/v2\/product_brand?post=836355"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/tunerscapital.eu\/en\/wp-json\/wp\/v2\/product_cat?post=836355"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/tunerscapital.eu\/en\/wp-json\/wp\/v2\/product_tag?post=836355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}