{"id":4933,"date":"2026-09-21T09:38:43","date_gmt":"2026-09-21T09:38:43","guid":{"rendered":"https:\/\/yzdlparts.com\/?post_type=product&#038;p=4933"},"modified":"2026-09-21T09:39:15","modified_gmt":"2026-09-21T09:39:15","slug":"faw-1112031-29d-intermediate-compression-nut","status":"publish","type":"product","link":"https:\/\/yzdlparts.com\/ru\/product\/faw-1112031-29d-intermediate-compression-nut\/","title":{"rendered":"FAW 1112031-29D Intermediate compression nut"},"content":{"rendered":"<p>The FAW <a href=\"https:\/\/yzdlparts.com\/ru\/faw\/\" title=\"1112031-29D\">1112031-29D<\/a> intermediate compression nut is an essential fastening component built for FAW commercial heavy-duty trucks. Manufactured under original OEM specifications, this genuine nut provides a tight, secure hold on critical line connections, protecting your engine systems from pressure loss and fluid leaks.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2699\ufe0f Reliable Connection Strength for Heavy-Duty Diesels<\/h2>\n\n\n\n<p>Maintaining secure pipe and line connections is vital to preventing leaks and system failures under heavy loads. The 1112031-29D compression nut delivers dependable performance:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Secure Fastening:<\/strong> Precision threads and solid metal design lock components tightly in place to hold high operating pressures.<\/li>\n\n\n\n<li><strong>Vibration Resistance:<\/strong> Heavy-duty steel construction resists loosening and wear caused by continuous engine vibration.<\/li>\n\n\n\n<li><strong>Direct OEM Fit:<\/strong> Engineered to match factory specifications for quick and precise installation during maintenance or repairs.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udcca Technical Specifications &amp; Keyword Reference<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/strong><\/td><td><strong>\u0422\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>\u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0430\u0440\u0442\u0438\u043a\u0443\u043b \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f (OEM)<\/strong><\/td><td>1112031-29D<\/td><\/tr><tr><td><strong>\u041a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442 \u00ab\u0424\u043e\u043a\u0443\u0441\u00bb<\/strong><\/td><td>Intermediate Compression Nut<\/td><\/tr><tr><td><strong>\u0421\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u044c \u0441 \u0442\u0440\u0430\u043d\u0441\u043f\u043e\u0440\u0442\u043d\u044b\u043c\u0438 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430\u043c\u0438<\/strong><\/td><td>FAW Commercial Trucks &amp; Tractor Units<\/td><\/tr><tr><td><strong>\u0424\u0443\u043d\u043a\u0446\u0438\u0438 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0430<\/strong><\/td><td>Line Connection &amp; Pressure Retention<\/td><\/tr><tr><td><strong>\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0430<\/strong><\/td><td>\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044f (OEM)<\/td><\/tr><tr><td><strong>\u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043e\u043f\u0442\u043e\u0432\u044b\u0445 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432<\/strong><\/td><td><a href=\"http:\/\/wa.me\/8618671978898\" title=\"+86 186 7197 8898\">+86 186 7197 8898<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>S\/N <\/strong><\/td><td><strong>Part number <\/strong><\/td><td><strong>Part name <\/strong><\/td><td><strong>\u041a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e <\/strong><\/td><\/tr><\/thead><tbody><tr><td>1<sup><\/sup><\/td><td><a href=\"https:\/\/yzdlparts.com\/ru\/%d1%82%d0%be%d0%b2%d0%b0%d1%80\/1111010-853-000-fuel-injection-pump-assembly\/\" title=\"111010-73D\">111010-73D<\/a><\/td><td>High pressure oil pump assembly<br><br>(High pressure fuel injection pump assembly)<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>2<sup><\/sup><\/td><td>111228-81D<sup><\/sup><\/td><td>High pressure fuel pump connecting flange<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>3<sup><\/sup><\/td><td>111216-81D<sup><\/sup><\/td><td>Fuel injection pump transmission gear<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>4<sup><\/sup><\/td><td>CQ73421550C<br><br>(GB3452.1)<br><br>155\u00d72.65<sup><\/sup><\/td><td>Hydraulic pneumatic rubber O-ring<br><br>(Rubber O-ring 155 * 2.65 -)<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>5<sup><\/sup><\/td><td>Q1841030<\/td><td>Hexagon head flange bolt<\/td><td>2<sup><\/sup><\/td><\/tr><tr><td>6<sup><\/sup><\/td><td>Q1841040<\/td><td>Hexagon head flange bolt<\/td><td>2<sup><\/sup><\/td><\/tr><tr><td>7<sup><\/sup><\/td><td>CQ1201030<br>(Q1201030)<\/td><td>Stud<sup><\/sup><\/td><td>4<sup><\/sup><\/td><\/tr><tr><td>8<sup><\/sup><\/td><td>CQ39610<br>(Q32010)<\/td><td>Hexagon flange nut<sup><\/sup><\/td><td>4<sup><\/sup><\/td><\/tr><tr><td>9<sup><\/sup><\/td><td>111226-59D<br>(1104089-630-0000)<\/td><td>Dowel pin<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>10<sup><\/sup><\/td><td>111227-59D<br>(1104088-630-0000)<\/td><td>Sleeve<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>11<sup><\/sup><\/td><td>1104030-81D<br><br>(1104030-M10-0000)<sup><\/sup><\/td><td>Inlet pipe assembly &#8211; fuel transfer pump to fine filter<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>12<sup><\/sup><\/td><td>1104040-81D<br><br>(1104040- M10-0000)<\/td><td>Oil inlet pipe assembly &#8211; fine filter to high pressure oil pump<\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>13<sup><\/sup><\/td><td>1104050-81D<sup><\/sup><\/td><td>Return pipe assembly<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>14<sup><\/sup><\/td><td>1104070-81D<sup><\/sup><\/td><td>Oil inlet pipe assembly<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>15<sup><\/sup><\/td><td>1104036-73D<br>(1104084-81D)<\/td><td>Hollow bolt &#8211; oil pump inlet and outlet<br>(Hinged bolt M16\u00d71.5)<\/td><td>7<sup><\/sup><\/td><\/tr><tr><td>16<sup><\/sup><\/td><td>CQ72316T5<br>(1104101-M11-051B)<\/td><td>Packing washer<br>(Low pressure tubing gasket)<\/td><td>16<sup><\/sup><\/td><\/tr><tr><td>17<sup><\/sup><\/td><td>1104073-D6<br>(1104083-81D)<\/td><td>Hollow bolt &#8211; oil return pipe<br>(Hinged bolt M14\u00d71.5)<\/td><td>2<sup><\/sup><\/td><\/tr><tr><td>18<sup><\/sup><\/td><td>CQ72314T5<br>(Q\/WC3455 14PB)<\/td><td>Packing washer<br>(Combination washer)<\/td><td>4<sup><\/sup><\/td><\/tr><tr><td>19<sup><\/sup><\/td><td>1117030-60D<br>(1104084-81D)<\/td><td>Hollow bolt<br>(Hinged bolt M16\u00d71.5)<\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>20<sup><\/sup><\/td><td>1104076-53D<br>(1104082-81D)<\/td><td>Hollow bolt-oil lubrication pipe assembly<br>(Hinged bolt M12\u00d71.25)<\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>21<sup><\/sup><\/td><td>CQ72312T5<br>(Q\/WC3455 12PB)<\/td><td>Packing washer<br>(Combination washer)<\/td><td>2<sup><\/sup><\/td><\/tr><tr><td>22<sup><\/sup><\/td><td>1104076-73D<br>(1104081-81D)<\/td><td>Hollow bolt-injection pump oil inlet<br>(Hinged bolt M10\u00d71)<\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>23<sup><\/sup><\/td><td>CQ72310T5<br>(Q\/WC3455 10PB)<\/td><td>Packing washer<br>(Combination washer)<\/td><td>2<sup><\/sup><\/td><\/tr><tr><td>24<sup><\/sup><\/td><td>1112010-51B<br><br>1112010-M10-0000<sup><\/sup><\/td><td>Fuel injector assembly<sup><\/sup><\/td><td>6<sup><\/sup><\/td><\/tr><tr><td>25<sup><\/sup><\/td><td>1112011-81D<sup><\/sup><\/td><td>Pressure plate, fuel injector<sup><\/sup><\/td><td>6<sup><\/sup><\/td><\/tr><tr><td>26<sup><\/sup><\/td><td>1112013-81D<sup><\/sup><\/td><td>Injector pressure plate bolt<sup><\/sup><\/td><td>6<sup><\/sup><\/td><\/tr><tr><td>27<sup><\/sup><\/td><td>1112014-81D<sup><\/sup><\/td><td>Spherical washer<sup><\/sup><\/td><td>6<sup><\/sup><\/td><\/tr><tr><td>28<sup><\/sup><\/td><td><a href=\"https:\/\/yzdlparts.com\/ru\/%d1%82%d0%be%d0%b2%d0%b0%d1%80\/1112030-81dc-high-pressure-fuel-pipe-connector\/\" title=\"1112030-81D\">1112030-81D<\/a><\/td><td>High pressure fuel line connecting pipe assembly<sup><\/sup><\/td><td>6<sup><\/sup><\/td><\/tr><tr><td>29<sup><\/sup><\/td><td>1112031-29D<sup><\/sup><\/td><td>Intermediate compression nut &#8211; high pressure fuel line connecting pipe<sup><\/sup><\/td><td>6<sup><\/sup><\/td><\/tr><tr><td>30<sup><\/sup><\/td><td>1129010-81D<sup><\/sup><\/td><td>First cylinder high pressure fuel line assembly<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>31<sup><\/sup><\/td><td>1129020-81D<sup><\/sup><\/td><td>Second cylinder high pressure fuel line assembly<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>32<sup><\/sup><\/td><td>1129030-81D<sup><\/sup><\/td><td>Third cylinder high pressure fuel line assembly<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>33<sup><\/sup><\/td><td>1129040-81D<sup><\/sup><\/td><td>Fourth cylinder high pressure fuel line assembly<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>34<sup><\/sup><\/td><td>1129050-81D<sup><\/sup><\/td><td>Fifth cylinder high pressure fuel line assembly<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>35<sup><\/sup><\/td><td>1129060-81D<sup><\/sup><\/td><td>Sixth cylinder high pressure fuel line assembly<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>36<sup><\/sup><\/td><td>1129070-81D<\/td><td>High pressure fuel line assembly I <\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>37<sup><\/sup><\/td><td>1129080-81D<\/td><td>High pressure fuel line assembly II <\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>38<sup><\/sup><\/td><td>1129090-73D<sup><\/sup><\/td><td>High pressure pipe clip assembly I<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>39<sup><\/sup><\/td><td>1129110-81D<sup><\/sup><\/td><td>High pressure oil rail assembly<sup><\/sup><\/td><td>1<sup><\/sup><\/td><\/tr><tr><td>40<sup><\/sup><\/td><td>Q1840835<\/td><td>Hexagon head flange bolt<br><br>(Hexagon flange bolt)<sup><\/sup><\/td><td>3<sup><\/sup><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"722\" src=\"https:\/\/yzdlparts.com\/wp-content\/uploads\/2026\/06\/figure-22-1024x722.webp\" alt=\"\" class=\"wp-image-4914\" srcset=\"https:\/\/yzdlparts.com\/wp-content\/uploads\/2026\/06\/figure-22-1024x722.webp 1024w, https:\/\/yzdlparts.com\/wp-content\/uploads\/2026\/06\/figure-22-300x212.webp 300w, https:\/\/yzdlparts.com\/wp-content\/uploads\/2026\/06\/figure-22-768x542.webp 768w, https:\/\/yzdlparts.com\/wp-content\/uploads\/2026\/06\/figure-22-1536x1083.webp 1536w, https:\/\/yzdlparts.com\/wp-content\/uploads\/2026\/06\/figure-22-2048x1445.webp 2048w, https:\/\/yzdlparts.com\/wp-content\/uploads\/2026\/06\/figure-22-18x12.webp 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u2753 Frequently Asked Questions (Technical &amp; Buying Guide)<\/h2>\n\n\n\n<p><strong>Q: What is the main function of the 1112031-29D intermediate compression nut?<\/strong><\/p>\n\n\n\n<p><strong>\u0410:<\/strong> It secures and seals high-pressure connections within the engine&#8217;s fluid or fuel delivery system to prevent leaks.<\/p>\n\n\n\n<p><strong>Q: When should a compression nut be replaced?<\/strong><\/p>\n\n\n\n<p><strong>\u0410:<\/strong> It should be replaced if the threads become stripped, the nut shows signs of cracking, or if it fails to maintain a secure, leak-free seal.<\/p>\n\n\n\n<p><strong>Q: How do I verify that part number 1112031-29D fits my engine?<\/strong><\/p>\n\n\n\n<p><strong>\u0410:<\/strong> You can check your parts catalog or send your FAW truck chassis VIN and engine serial number to our technical support team via WhatsApp at <strong><a href=\"http:\/\/wa.me\/8618671978898\" title=\"+86 186 7197 8898\">+86 186 7197 8898<\/a><\/strong> \u0434\u043b\u044f \u043c\u0433\u043d\u043e\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u043f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0438\u044f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\udd1d Global Wholesale &amp; Export Enquiries<\/h2>\n\n\n\n<p>We export genuine FAW heavy-duty engine, plumbing, and commercial truck hardware to fleet managers, maintenance hubs, and automotive spare parts distributors worldwide. Contact us today for competitive bulk pricing and fast international shipping.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-vivid-green-cyan-background-color has-background wp-element-button\" href=\"http:\/\/wa.me\/8618671978898\"><strong>Contact YIZHI Power Now!<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>","protected":false},"featured_media":0,"parent":0,"menu_order":0,"template":"","product_categories":[182],"class_list":["post-4933","product","type-product","status-publish","hentry","product_categories-faw"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/yzdlparts.com\/ru\/wp-json\/wp\/v2\/product\/4933","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yzdlparts.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/yzdlparts.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/yzdlparts.com\/ru\/wp-json\/wp\/v2\/product\/4933\/revisions"}],"predecessor-version":[{"id":4938,"href":"https:\/\/yzdlparts.com\/ru\/wp-json\/wp\/v2\/product\/4933\/revisions\/4938"}],"wp:attachment":[{"href":"https:\/\/yzdlparts.com\/ru\/wp-json\/wp\/v2\/media?parent=4933"}],"wp:term":[{"taxonomy":"product_categories","embeddable":true,"href":"https:\/\/yzdlparts.com\/ru\/wp-json\/wp\/v2\/product_categories?post=4933"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}